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SEM Simulations
SIMULATION #1
Tested: Model 3 (Intention Partial Mediates the Effects of Attitude & Past Behavior on Behavior)
Data Set: Model 3_Intention (Att, PB, and Behavior in relation to Intention)
SAS SYNTAX:
proc calis data=SASUSER.SEM_INTDATA;path attitude ---> X1 X2 X3 = lam1 lam2 lam3, subnorms ---> X4 X5 X6 = lam1 lam2 lam3, intention ---> X7 X8 X9 = lam1 lam2 lam3, pastbeh ---> X10 X11 X12 = lam1 lam2 lam3, beh ---> X13 X14 X15 = lam1 lam2 lam3, attitude ---> intention beh, pastbeh---> intention beh, subnorms ---> intention, intention ---> beh; run;
SAS LOG:
1 proc calis data=SASUSER.SEM_INTDATA;2 path3 attitude ---> X1 X2 X3 = lam1 lam2 lam3,4 subnorms ---> X4 X5 X6 = lam1 lam2 lam3,5 intention ---> X7 X8 X9 = lam1 lam2 lam3,6 pastbeh ---> X10 X11 X12 = lam1 lam2 lam3,7 beh ---> X13 X14 X15 = lam1 lam2 lam3,8 attitude ---> intention beh,9 pastbeh---> intention beh,10 subnorms ---> intention,11 intention ---> beh;12 run;
NOTE: Convergence criterion (GCONV=1E-8) satisfied.NOTE: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.WARNING: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.NOTE: PROCEDURE CALIS used (Total process time): real time 1.20 seconds cpu time 0.87 seconds
SAS OUTPUT:
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Model and Initial Values
Modeling Information
Data Set SASUSER.SEM_INTDATA
Modeling Information
N Records Read
228
N Records Used 228
N Obs 228
Model Type PATH
Analysis Covariances
Variables in the Model
Endogenous
Manifest X1 X10 X11 X12 X13 X14 X15 X2 X3 X4 X5 X6 X7 X8 X9
Latent beh intention
Exogenous Manifest
Latent attitude pastbeh subnorms
Number of Endogenous Variables = 17Number of Exogenous Variables = 3
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Descriptive Statistics
Simple Statistics
Variable Mean Std Dev
X1 X1 -0.18557 2.22965
X2 X2 -2.20722 2.19830
X3 X3 -3.79376 1.81540
X4 X4 -0.81200 2.95223
X5 X5 0.08676 2.43522
X6 X6 2.35058 2.15656
X7 X7 -0.48882 1.30821
X8 X8 -0.97984 1.33089
X9 X9 1.69498 1.31175
X10
X10 0.34446 4.10414
Simple Statistics
Variable Mean Std Dev
X11
X11 -7.14348 3.74671
X12
X12 3.66854 3.40156
X13
X13 0.58236 1.37847
X14
X14 0.46012 1.44859
X15
X15 0.54218 1.28555
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Initial Estimation Methods
1 Instrumental Variables Method
2 McDonald Method
3 Two-Stage Least Squares
Optimization StartParameter Estimates
N Parameter Estimate Gradient
1 lam1 1.00000 -0.59768
2 lam2 0.88609 0.15125
3 lam3 0.76996 0.01355
4 _Parm1 0.13192 -0.09498
5 _Parm2 -0.03676 -0.01859
6 _Parm3 0.08253 -0.16175
7 _Parm4 0.02599 0.02477
8 _Parm5 0.14076 0.09933
9 _Parm6 0.23829 0.00267
10 _Add01 4.24777 -0.06989
11 _Add02 6.86760 -0.18432
12 _Add03 16.65435 -0.07484
13 _Add04 0.72357 -0.21081
14 _Add05 1.49735 0.12793
15 _Add06 0.77741 -0.25448
16 _Add07 1.84807 0.12764
17 _Add08 0.53817 -0.34487
18 _Add09 0.57932 -0.54889
19 _Add10 0.76450 -0.07901
Optimization StartParameter Estimates
N Parameter Estimate Gradient
20 _Add11 1.02778 0.00209
21 _Add12 1.15930 0.01920
22 _Add13 0.18964 -0.97008
23 _Add14 0.96159 -0.50598
24 _Add15 1.69717 0.13771
25 _Add16 0.88437 -0.02383
26 _Add17 1.30086 0.00451
27 _Add18 1.05044 0.00681
28 _Add19 0.06455 -0.05439
29 _Add20 0.96392 0.01076
30 _Add21 4.65652 0.07849
31 _Add22 7.21990 0.02319
32 _Add23 9.84877 0.20740
Value of Objective Function = 0.9781959536
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Levenberg-Marquardt Optimization
Scaling Update of More (1978)
Parameter Estimates 32
Functions (Observations) 120
Optimization Start
Active Constraints 0 Objective Function 0.9781959536
Max Abs Gradient Element 0.9700773661 Radius 4.9416960031
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
1 * 0 4 0 0.46272 0.5155 0.3040 111E-16
0.751
2 * 0 6 0 0.45281 0.00992 0.0453 111E-16
0.839
3 * 0 8 0 0.45188 0.000925
0.0184 111E-16
0.938
4 * 0 10 0 0.45182 0.000065
0.00225 111E-16
0.998
5 * 0 12 0 0.45181 5.546E-6
0.00130 111E-16
1.058
6 * 0 14 0 0.45181 5.279E-7
0.000196
111E-16
1.112
7 * 0 16 0 0.45181 5.202E- 0.00011 111E- 1.160
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
8 4 16
8 * 0 18 0 0.45181 5.25E-9 0.000019
111E-16
1.200
9 * 0 20 0 0.45181 5.38E-10
0.000011
111E-16
1.232
Optimization Results
Iterations 9 Function Calls 23
Jacobian Calls 11 Active Constraints 0
Objective Function 0.4518098078 Max Abs Gradient Element 0.0000111963
Lambda 1.110223E-14 Actual Over Pred Change 1.2323157247
Radius 5692.8337955
Convergence criterion (GCONV=1E-8) satisfied.
Note: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.
Warning: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.
Note: Covariance matrix for the estimates is not full rank.
Note: The variance of some parameter estimates is zero or some parameter estimates are linearly related to other parameter estimates as shown in the following equations:
_Ad
=141.75
+ 0.14
*lam
+0.12
*lam
+0.11
*lam
- 1.24
*_Ad
- 2.00
*_Ad
- 4.85
*_Ad
- 0.01
*_Ad
- 0.27
*_Ad
- 1.34
*_Ad
- 2.85
*_Ad
d22
7969
3704
1 8427
2 1948
3 0364
d01
4088
d02
3819
d03
8282
d19
4115
d20
7196
d21
5816
d23
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Fit Summary
Modeling Info N Observations 228
N Variables 15
N Moments 120
N Parameters 32
N Active Constraints 0
Baseline Model Function Value 14.1366
Baseline Model Chi-Square 3209.0143
Baseline Model Chi-Square DF 105
Pr > Baseline Model Chi-Square <.0001
Absolute Index Fit Function 0.4518
Chi-Square 102.5608
Chi-Square DF 88
Pr > Chi-Square 0.1374
Z-Test of Wilson & Hilferty 1.0923
Hoelter Critical N 246
Root Mean Square Residual (RMSR) 0.2457
Standardized RMSR (SRMSR) 0.0449
Goodness of Fit Index (GFI) 0.9430
Parsimony Index Adjusted GFI (AGFI) 0.9223
Parsimonious GFI 0.7903
RMSEA Estimate 0.0270
RMSEA Lower 90% Confidence Limit 0.0000
RMSEA Upper 90% Confidence Limit 0.0469
Probability of Close Fit 0.9744
ECVI Estimate 0.7551
Fit Summary
ECVI Lower 90% Confidence Limit 0.7204
ECVI Upper 90% Confidence Limit 0.8869
Akaike Information Criterion 166.5608
Bozdogan CAIC 308.2999
Schwarz Bayesian Criterion 276.2999
McDonald Centrality 0.9686
Incremental Index
Bentler Comparative Fit Index 0.9953
Bentler-Bonett NFI 0.9680
Bentler-Bonett Non-normed Index 0.9944
Bollen Normed Index Rho1 0.9619
Bollen Non-normed Index Delta2 0.9953
James et al. Parsimonious NFI 0.8113
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
PATH List
Path Parameter Estimate
StandardError
t Value
attitude --->
X1 lam1 0.98962 0.04729 20.92755
attitude --->
X2 lam2 0.88442 0.04285 20.64206
attitude --->
X3 lam3 0.77094 0.03780 20.39521
subnorms --->
X4 lam1 0.98962 0.04729 20.92755
subnorms --->
X5 lam2 0.88442 0.04285 20.64206
subnorms --->
X6 lam3 0.77094 0.03780 20.39521
intention --->
X7 lam1 0.98962 0.04729 20.92755
intention --->
X8 lam2 0.88442 0.04285 20.64206
intention --->
X9 lam3 0.77094 0.03780 20.39521
pastbeh --->
X10 lam1 0.98962 0.04729 20.92755
pastbeh --->
X11 lam2 0.88442 0.04285 20.64206
pastbeh --->
X12 lam3 0.77094 0.03780 20.39521
beh --->
X13 lam1 0.98962 0.04729 20.92755
beh --->
X14 lam2 0.88442 0.04285 20.64206
beh --- X15 lam3 0.77094 0.03780 20.39521
PATH List
Path Parameter Estimate
StandardError
t Value
>
attitude --->
intention _Parm1 0.14782 0.05658 2.61253
attitude --->
beh _Parm2 0.01303 0.14928 0.08729
pastbeh --->
intention _Parm3 0.09604 0.03592 2.67378
pastbeh --->
beh _Parm4 0.06159 0.09812 0.62770
subnorms --->
intention _Parm5 0.10752 0.05705 1.88448
intention --->
beh _Parm6 -0.01311 0.62240 -0.02107
Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 4.27091 0.30570 13.97076
subnorms _Add02 6.90063 0.34813 19.82203
pastbeh _Add03 16.71304 0.31915 52.36759
Error X1 _Add04 0.97754 0.13465 7.26007
X2 _Add05 1.04880 0.12871 8.14852
X3 _Add06 0.98239 0.11372 8.63890
X4 _Add07 1.17038 0.14733 7.94382
X5 _Add08 0.74346 0.10288 7.22630
X6 _Add09 0.89916 0.10541 8.53023
X7 _Add10 0.80976 0.09318 8.69018
X8 _Add11 1.03032 0.10678 9.64928
X9 _Add12 1.12275 0.11174 10.04817
X10 _Add13 0.80383 0.14013 5.73653
Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
X11 _Add14 1.14986 0.14682 7.83160
X12 _Add15 1.04377 0.12527 8.33188
X13 _Add16 0.94555 0.13439 7.03580
X14 _Add17 1.27833 0.14932 8.56084
X15 _Add18 1.03177 0.11878 8.68661
intention _Add19 0.06295 0.05408 1.16402
beh _Add20 0.94385 0.16141 5.84769
Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude _Add21 4.63877 0.22893 20.26319
pastbeh attitude _Add22 7.25955 0.27290 26.60123
pastbeh subnorms _Add23 9.83336 0.21634 45.45428
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X1 0.97754 5.16028 0.8106
X10 0.80383 17.17183 0.9532
X11 1.14986 14.22276 0.9192
X12 1.04377 10.97709 0.9049
X13 0.94555 1.93776 0.5120
X14 1.27833 2.07080 0.3827
X15 1.03177 1.63392 0.3685
X2 1.04880 4.38949 0.7611
X3 0.98239 3.52079 0.7210
X4 1.17038 7.92854 0.8524
X5 0.74346 6.14112 0.8789
X6 0.89916 5.00051 0.8202
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X7 0.80976 1.73705 0.5338
X8 1.03032 1.77093 0.4182
X9 1.12275 1.68550 0.3339
beh 0.94385 1.01313 0.0684
intention 0.06295 0.94683 0.9335
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Standardized Results for PATH List
Path Parameter Estimate StandardError
t Value
attitude ---> X1 lam1 0.90031 0.01525 59.03827
attitude ---> X2 lam2 0.87239 0.01731 50.40649
attitude ---> X3 lam3 0.84910 0.01906 44.56050
subnorms
---> X4 lam1 0.92325 0.01123 82.23967
subnorms
---> X5 lam2 0.93752 0.00996 94.09365
subnorms
---> X6 lam3 0.90564 0.01293 70.06525
intention ---> X7 lam1 0.73064 0.03338 21.88720
intention ---> X8 lam2 0.64669 0.03455 18.71960
intention ---> X9 lam3 0.57782 0.03443 16.78082
pastbeh ---> X10 lam1 0.97631 0.00465 209.80735
pastbeh ---> X11 lam2 0.95872 0.00637 150.59335
pastbeh ---> X12 lam3 0.95127 0.00718 132.48656
beh ---> X13 lam1 0.71557 0.03834 18.66307
beh ---> X14 lam2 0.61862 0.03661 16.89663
beh ---> X15 lam3 0.60707 0.03651 16.62549
attitude ---> intention
_Parm1 0.31395 0.11933 2.63092
attitude ---> beh _Parm2 0.02675 0.30648 0.08729
pastbeh ---> intention
_Parm3 0.40349 0.15011 2.68791
pastbeh ---> beh _Parm4 0.25014 0.39807 0.62839
subnorms
---> intention
_Parm5 0.29025 0.15354 1.89036
Standardized Results for PATH List
Path Parameter Estimate StandardError
t Value
intention ---> beh _Parm6 -0.01268 0.60169 -0.02107
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 1.00000
subnorms _Add02 1.00000
pastbeh _Add03 1.00000
Error X1 _Add04 0.18944 0.02746 6.89884
X2 _Add05 0.23893 0.03020 7.91243
X3 _Add06 0.27903 0.03236 8.62275
X4 _Add07 0.14762 0.02073 7.12113
X5 _Add08 0.12106 0.01868 6.48015
X6 _Add09 0.17981 0.02341 7.68034
X7 _Add10 0.46617 0.04878 9.55657
X8 _Add11 0.58179 0.04468 13.02105
X9 _Add12 0.66612 0.03979 16.73996
X10 _Add13 0.04681 0.00909 5.15184
X11 _Add14 0.08085 0.01221 6.62292
X12 _Add15 0.09509 0.01366 6.96070
X13 _Add16 0.48796 0.05487 8.89266
X14 _Add17 0.61731 0.04530 13.62804
X15 _Add18 0.63147 0.04433 14.24374
intention _Add19 0.06648 0.05385 1.23461
beh _Add20 0.93162 0.03997 23.30951
Standardized Results for Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude _Add21 0.85447 0.02376 35.95744
pastbeh attitude _Add22 0.85925 0.02195 39.13942
pastbeh subnorms _Add23 0.91565 0.01378 66.42591
Simulation #2
Test: Model 2 (Intention Partially Mediates Attitude Effects on Behavior)
Data Set: Model 3_Intention (Att, PB, and Behavior in relation to Intention)
SAS SYNTAX:
proc calis data=SASUSER.SEM_INTDATA; path attitude ---> X1 X2 X3 = lam1 lam2 lam3, subnorms ---> X4 X5 X6 = lam1 lam2 lam3, intention ---> X7 X8 X9 = lam1 lam2 lam3, beh ---> X13 X14 X15 = lam1 lam2 lam3, attitude ---> intention beh, subnorms ---> intention, intention ---> beh;run;
SAS LOG:
1 proc calis data=SASUSER.SEM_INTDATA;2 path3 attitude ---> X1 X2 X3 = lam1 lam2 lam3,4 subnorms ---> X4 X5 X6 = lam1 lam2 lam3,5 intention ---> X7 X8 X9 = lam1 lam2 lam3,6 beh ---> X13 X14 X15 = lam1 lam2 lam3,7 attitude ---> intention beh,8 subnorms ---> intention,9 intention ---> beh;10 run;
NOTE: Convergence criterion (GCONV=1E-8) satisfied.NOTE: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.WARNING: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.NOTE: PROCEDURE CALIS used (Total process time): real time 1.10 seconds cpu time 0.67 seconds
SAS OUTPUT:
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Model and Initial Values
Modeling Information
Data Set SASUSER.SEM_INTDATA
N Records Read
228
N Records Used 228
N Obs 228
Model Type PATH
Analysis Covariances
Variables in the Model
Endogenous
Manifest X1 X13 X14 X15 X2 X3 X4 X5 X6 X7 X8 X9
Latent beh intention
Exogenous Manifest
Latent attitude subnorms
Number of Endogenous Variables = 14Number of Exogenous Variables = 2
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Descriptive Statistics
Simple Statistics
Variable Mean Std Dev
X1 X1 -0.18557 2.22965
X2 X2 -2.20722 2.19830
X3 X3 -3.79376 1.81540
X4 X4 -0.81200 2.95223
X5 X5 0.08676 2.43522
X6 X6 2.35058 2.15656
Simple Statistics
Variable Mean Std Dev
X7 X7 -0.48882 1.30821
X8 X8 -0.97984 1.33089
X9 X9 1.69498 1.31175
X13
X13 0.58236 1.37847
X14
X14 0.46012 1.44859
X15
X15 0.54218 1.28555
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Initial Estimation Methods
1 Instrumental Variables Method
2 McDonald Method
3 Two-Stage Least Squares
Optimization StartParameter Estimates
N Parameter Estimate Gradient
1 lam1 1.00000 0.00470
2 lam2 0.87495 -0.17665
3 lam3 0.72456 0.00476
4 _Parm1 0.17144 0.03046
5 _Parm2 -0.04647 -0.0004326
6 _Parm3 0.23105 0.20110
7 _Parm4 0.36586 0.00535
8 _Add01 4.43522 -0.07750
9 _Add02 7.16990 -0.05049
10 _Add03 0.53613 -0.35375
11 _Add04 1.43723 0.10279
12 _Add05 0.96724 -0.09507
13 _Add06 1.54578 0.07602
14 _Add07 0.44156 -0.33061
15 _Add08 0.88661 -0.05908
16 _Add09 0.72424 -0.13932
17 _Add10 1.01554 -0.01629
18 _Add11 1.20242 0.02992
19 _Add12 0.84194 -0.02563
Optimization StartParameter Estimates
N Parameter Estimate Gradient
20 _Add13 1.28831 -0.00516
21 _Add14 1.09709 0.01834
22 _Add15 0.09057 -0.13502
23 _Add16 1.01705 0.01858
24 _Add17 4.84064 0.12929
Value of Objective Function = 0.4751269366
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Levenberg-Marquardt Optimization
Scaling Update of More (1978)
Parameter Estimates 24
Functions (Observations) 78
Optimization Start
Active Constraints 0 Objective Function 0.4751269366
Max Abs Gradient Element 0.353754238
Radius 1.4982740861
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
1 * 0 4 0 0.32317 0.1520 0.1762 111E-16
0.872
2 * 0 6 0 0.31992 0.00325 0.00785 111E-16
0.976
3 * 0 8 0 0.31975 0.000173
0.00823 111E-16
1.088
4 * 0 10 0 0.31973 0.000016
0.00106 111E-16
1.234
5 * 0 12 0 0.31973 1.857E-6
0.000683
111E-16
1.318
6 * 0 14 0 0.31973 2.387E-7
0.000185
111E-16
1.350
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
7 * 0 16 0 0.31973 3.155E-8
0.000079
111E-16
1.361
8 * 0 18 0 0.31973 4.206E-9
0.000026
111E-16
1.364
9 * 0 20 0 0.31973 5.62E-10
0.000010
111E-16
1.365
Optimization Results
Iterations 9 Function Calls 23
Jacobian Calls 11 Active Constraints 0
Objective Function 0.3197282375 Max Abs Gradient Element 0.0000100744
Lambda 1.110223E-14 Actual Over Pred Change 1.3652723962
Radius 1726.0117472
Convergence criterion (GCONV=1E-8) satisfied.
Note: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.
Warning: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.
Note: Covariance matrix for the estimates is not full rank.
Note: The variance of some parameter estimates is zero or some parameter estimates are linearly related to other parameter estimates as shown in the following equations:
_Add
= 27.406
+ 0.1587
* lam
+ 0.1398
* lam
+ 0.1160
* lam
- 1.4112
* _Add
- 2.2908
* _Add
- 0.0247
* _Add
- 0.3111
* _Add
17 744 55 1 64 2 37 3 96 01 38 02 81 15 63 16
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Fit Summary
Modeling Info N Observations 228
N Variables 12
N Moments 78
N Parameters 24
N Active Constraints 0
Baseline Model Function Value 8.0815
Baseline Model Chi-Square 1834.4924
Baseline Model Chi-Square DF 66
Pr > Baseline Model Chi-Square <.0001
Absolute Index Fit Function 0.3197
Chi-Square 72.5783
Chi-Square DF 54
Pr > Chi-Square 0.0466
Z-Test of Wilson & Hilferty 1.6788
Hoelter Critical N 226
Root Mean Square Residual (RMSR) 0.1760
Standardized RMSR (SRMSR) 0.0458
Goodness of Fit Index (GFI) 0.9492
Parsimony Index Adjusted GFI (AGFI) 0.9267
Parsimonious GFI 0.7767
RMSEA Estimate 0.0389
RMSEA Lower 90% Confidence Limit 0.0051
RMSEA Upper 90% Confidence Limit 0.0605
Probability of Close Fit 0.7811
ECVI Estimate 0.5440
Fit Summary
ECVI Lower 90% Confidence Limit 0.4766
ECVI Upper 90% Confidence Limit 0.6623
Akaike Information Criterion 120.5783
Bozdogan CAIC 226.8826
Schwarz Bayesian Criterion 202.8826
McDonald Centrality 0.9601
Incremental Index
Bentler Comparative Fit Index 0.9895
Bentler-Bonett NFI 0.9604
Bentler-Bonett Non-normed Index 0.9872
Bollen Normed Index Rho1 0.9516
Bollen Non-normed Index Delta2 0.9896
James et al. Parsimonious NFI 0.7858
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
PATH List
Path Parameter Estimate
StandardError
t Value
attitude --->
X1 lam1 0.99355 0.04917 20.20479
attitude --->
X2 lam2 0.87532 0.04333 20.19988
attitude --->
X3 lam3 0.72620 0.03782 19.20317
subnorms --->
X4 lam1 0.99355 0.04917 20.20479
subnorms --->
X5 lam2 0.87532 0.04333 20.19988
subnorms --->
X6 lam3 0.72620 0.03782 19.20317
intention --->
X7 lam1 0.99355 0.04917 20.20479
intention --->
X8 lam2 0.87532 0.04333 20.19988
intention --->
X9 lam3 0.72620 0.03782 19.20317
beh --->
X13 lam1 0.99355 0.04917 20.20479
beh --->
X14 lam2 0.87532 0.04333 20.19988
beh --->
X15 lam3 0.72620 0.03782 19.20317
attitude --->
intention _Parm1 0.19564 0.05475 3.57333
attitude --->
beh _Parm2 -0.02080 0.14213 -0.14635
subnorms --- intention _Parm3 0.21116 0.04231 4.99117
PATH List
Path Parameter Estimate
StandardError
t Value
>
intention --->
beh _Parm4 0.31369 0.30746 1.02028
Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 4.41621 0.26026 16.96821
subnorms _Add02 7.16846 0.21257 33.72261
Error X1 _Add03 0.96584 0.14023 6.88766
X2 _Add04 1.03729 0.13057 7.94439
X3 _Add05 0.99699 0.11407 8.74016
X4 _Add06 1.11778 0.15457 7.23174
X5 _Add07 0.72936 0.11042 6.60534
X6 _Add08 0.93293 0.10954 8.51679
X7 _Add09 0.80574 0.09482 8.49746
X8 _Add10 1.03587 0.10815 9.57782
X9 _Add11 1.14412 0.11358 10.07351
X13 _Add12 0.90715 0.13566 6.68691
X14 _Add13 1.28975 0.15108 8.53703
X15 _Add14 1.06097 0.11933 8.89129
intention _Add15 0.07754 0.05699 1.36074
beh _Add16 0.97369 0.16645 5.84987
Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate
StandardError
t Value
subnorms
attitude
_Add17 4.81191 0.12491 38.52294
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X1 0.96584 5.32526 0.8186
X13 0.90715 1.93960 0.5323
X14 1.28975 2.09110 0.3832
X15 1.06097 1.61255 0.3421
X2 1.03729 4.42092 0.7654
X3 0.99699 3.32597 0.7002
X4 1.11778 8.19406 0.8636
X5 0.72936 6.22172 0.8828
X6 0.93293 4.71336 0.8021
X7 0.80574 1.75713 0.5414
X8 1.03587 1.77430 0.4162
X9 1.14412 1.65239 0.3076
beh 0.97369 1.04590 0.0690
intention 0.07754 0.96379 0.9195
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Standardized Results for PATH List
Path Parameter Estimate
StandardError
t Value
attitude --->
X1 lam1 0.90478 0.01550 58.39169
attitude --->
X2 lam2 0.87485 0.01770 49.43387
attitude --->
X3 lam3 0.83680 0.02076 40.30198
subnorms --->
X4 lam1 0.92929 0.01138 81.63531
subnorms --->
X5 lam2 0.93956 0.01050 89.44171
subnorms --->
X6 lam3 0.89558 0.01464 61.16794
intention --->
X7 lam1 0.73583 0.03368 21.84465
intention --->
X8 lam2 0.64512 0.03508 18.39125
intention --->
X9 lam3 0.55462 0.03500 15.84632
beh --->
X13 lam1 0.72959 0.03929 18.56897
beh --->
X14 lam2 0.61905 0.03715 16.66337
beh --->
X15 lam3 0.58485 0.03697 15.82024
attitude --->
intention _Parm1 0.41878 0.11569 3.61972
attitude --->
beh _Parm2 -0.04274 0.29204 -0.14636
subnorms --- intention _Parm3 0.57589 0.11256 5.11645
Standardized Results for PATH List
Path Parameter Estimate
StandardError
t Value
>
intention --->
beh _Parm4 0.30113 0.29334 1.02656
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 1.00000
subnorms _Add02 1.00000
Error X1 _Add03 0.18137 0.02804 6.46839
X2 _Add04 0.23463 0.03097 7.57727
X3 _Add05 0.29976 0.03475 8.62624
X4 _Add06 0.13641 0.02116 6.44760
X5 _Add07 0.11723 0.01974 5.93874
X6 _Add08 0.19793 0.02623 7.54744
X7 _Add09 0.45855 0.04957 9.25019
X8 _Add10 0.58382 0.04526 12.89944
X9 _Add11 0.69240 0.03882 17.83501
X13 _Add12 0.46770 0.05733 8.15764
X14 _Add13 0.61678 0.04600 13.40950
X15 _Add14 0.65795 0.04324 15.21527
intention _Add15 0.08046 0.05531 1.45455
beh _Add16 0.93095 0.04355 21.37538
Standardized Results for Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude _Add17 0.85522 0.02364 36.18429
SIMULATION #3
Tested: Model 1 (Theory of Reasoned Action)
Data Set: Model 3_Intention (Att, PB, and Behavior in relation to Intention)
SAS SYNTAX:
proc calis data=SASUSER.SEM_INTDATA;pathattitude ---> X1 X2 X3 = lam1 lam2 lam3, subnorms ---> X4 X5 X6 = lam1 lam2 lam3, intention ---> X7 X8 X9 = lam1 lam2 lam3, beh ---> X13 X14 X15 = lam1 lam2 lam3, attitude ---> intention, subnorms ---> intention, intention ---> beh;run;
SAS LOG:
1 proc calis data=SASUSER.SEM_INTDATA;2 path3 attitude ---> X1 X2 X3 = lam1 lam2 lam3,4 subnorms ---> X4 X5 X6 = lam1 lam2 lam3,5 intention ---> X7 X8 X9 = lam1 lam2 lam3,6 beh ---> X13 X14 X15 = lam1 lam2 lam3,7 attitude ---> intention,8 subnorms ---> intention,9 intention ---> beh;10 run;
NOTE: Convergence criterion (GCONV=1E-8) satisfied.NOTE: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.WARNING: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.NOTE: PROCEDURE CALIS used (Total process time): real time 1.09 seconds cpu time 0.74 seconds
SAS OUTPUT:
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Model and Initial Values
Modeling Information
Data Set SASUSER.SEM_INTDATA
N Records Read
228
N Records Used 228
N Obs 228
Modeling Information
Model Type PATH
Analysis Covariances
Variables in the Model
Endogenous
Manifest X1 X13 X14 X15 X2 X3 X4 X5 X6 X7 X8 X9
Latent beh intention
Exogenous Manifest
Latent attitude subnorms
Number of Endogenous Variables = 14Number of Exogenous Variables = 2
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Descriptive Statistics
Simple Statistics
Variable Mean Std Dev
X1 X1 -0.18557 2.22965
X2 X2 -2.20722 2.19830
X3 X3 -3.79376 1.81540
X4 X4 -0.81200 2.95223
X5 X5 0.08676 2.43522
X6 X6 2.35058 2.15656
X7 X7 -0.48882 1.30821
X8 X8 -0.97984 1.33089
X9 X9 1.69498 1.31175
X13
X13 0.58236 1.37847
X14
X14 0.46012 1.44859
X15
X15 0.54218 1.28555
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Initial Estimation Methods
1 Instrumental Variables Method
2 McDonald Method
3 Two-Stage Least Squares
Optimization StartParameter Estimates
N Parameter Estimate Gradient
1 lam1 1.00000 -0.0006414
2 lam2 0.87495 -0.18254
3 lam3 0.72456 -0.0000787
4 _Parm1 0.17144 0.03574
5 _Parm2 0.23105 0.19740
6 _Parm3 0.26848 0.00184
7 _Add01 4.43522 -0.07737
8 _Add02 7.16990 -0.05046
9 _Add03 0.53613 -0.35677
10 _Add04 1.43723 0.10297
11 _Add05 0.96724 -0.09405
12 _Add06 1.54578 0.07587
13 _Add07 0.44156 -0.32954
14 _Add08 0.88661 -0.05917
15 _Add09 0.72424 -0.13889
16 _Add10 1.01554 -0.01546
17 _Add11 1.20242 0.02992
18 _Add12 0.84194 -0.02756
19 _Add13 1.28831 -0.00532
Optimization StartParameter Estimates
N Parameter Estimate Gradient
20 _Add14 1.09709 0.01769
21 _Add15 0.09057 -0.14819
22 _Add16 1.00923 0.01286
23 _Add17 4.84064 0.12916
Value of Objective Function = 0.4751696982
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Levenberg-Marquardt Optimization
Scaling Update of More (1978)
Parameter Estimates 23
Functions (Observations) 78
Optimization Start
Active Constraints 0 Objective Function 0.4751696982
Max Abs Gradient Element 0.3567744922 Radius 1.5014336492
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
1 * 0 4 0 0.32306 0.1521 0.1768 111E-16
0.870
2 * 0 6 0 0.31999 0.00306 0.00789 111E-16
1.011
3 * 0 8 0 0.31983 0.000159
0.00810 111E-16
1.164
4 * 0 10 0 0.31982 0.000015
0.00116 111E-16
1.293
5 * 0 12 0 0.31982 1.757E-6
0.000665
111E-16
1.338
6 * 0 14 0 0.31982 2.174E-7
0.000183
111E-16
1.350
7 * 0 16 0 0.31982 2.723E- 0.00007 111E- 1.353
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
8 4 16
8 * 0 18 0 0.31982 3.421E-9
0.000024
111E-16
1.354
9 * 0 20 0 0.31982 4.3E-10 8.98E-6 111E-16
1.354
Optimization Results
Iterations 9 Function Calls 23
Jacobian Calls 11 Active Constraints 0
Objective Function 0.3198177803 Max Abs Gradient Element 8.9797268E-6
Lambda 1.110223E-14 Actual Over Pred Change 1.3544493549
Radius 1729.6515639
Convergence criterion (GCONV=1E-8) satisfied.
Note: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.
Warning: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.
Note: Covariance matrix for the estimates is not full rank.
Note: The variance of some parameter estimates is zero or some parameter estimates are linearly related to other parameter estimates as shown in the following equations:
_Add17
= 27.471302
+ 0.158778
* lam1
+ 0.139907
* lam2
+ 0.116072
* lam3
- 1.413695
* _Add01
- 2.294513
* _Add02
- 0.025494
* _Add15
- 0.312201
* _Add16
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Fit Summary
Modeling Info N Observations 228
N Variables 12
N Moments 78
N Parameters 23
N Active Constraints 0
Baseline Model Function Value 8.0815
Baseline Model Chi-Square 1834.4924
Baseline Model Chi-Square DF 66
Pr > Baseline Model Chi-Square <.0001
Absolute Index Fit Function 0.3198
Chi-Square 72.5986
Chi-Square DF 55
Pr > Chi-Square 0.0561
Z-Test of Wilson & Hilferty 1.5889
Hoelter Critical N 230
Root Mean Square Residual (RMSR) 0.1761
Standardized RMSR (SRMSR) 0.0458
Goodness of Fit Index (GFI) 0.9493
Parsimony Index Adjusted GFI (AGFI) 0.9280
Parsimonious GFI 0.7910
RMSEA Estimate 0.0375
RMSEA Lower 90% Confidence Limit 0.0000
RMSEA Upper 90% Confidence Limit 0.0592
Probability of Close Fit 0.8104
ECVI Estimate 0.5348
Fit Summary
ECVI Lower 90% Confidence Limit 0.4720
ECVI Upper 90% Confidence Limit 0.6526
Akaike Information Criterion 118.5986
Bozdogan CAIC 220.4736
Schwarz Bayesian Criterion 197.4736
McDonald Centrality 0.9621
Incremental Index
Bentler Comparative Fit Index 0.9900
Bentler-Bonett NFI 0.9604
Bentler-Bonett Non-normed Index 0.9881
Bollen Normed Index Rho1 0.9525
Bollen Non-normed Index Delta2 0.9901
James et al. Parsimonious NFI 0.8004
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
PATH List
Path Parameter Estimate
StandardError
t Value
attitude --->
X1 lam1 0.99298 0.04915 20.20360
attitude --->
X2 lam2 0.87497 0.04331 20.20120
attitude --->
X3 lam3 0.72591 0.03780 19.20429
subnorms --->
X4 lam1 0.99298 0.04915 20.20360
subnorms --->
X5 lam2 0.87497 0.04331 20.20120
subnorms --->
X6 lam3 0.72591 0.03780 19.20429
intention --->
X7 lam1 0.99298 0.04915 20.20360
intention --->
X8 lam2 0.87497 0.04331 20.20120
intention --->
X9 lam3 0.72591 0.03780 19.20429
beh --->
X13 lam1 0.99298 0.04915 20.20360
beh --->
X14 lam2 0.87497 0.04331 20.20120
beh --->
X15 lam3 0.72591 0.03780 19.20429
attitude --->
intention _Parm1 0.19491 0.05446 3.57881
subnorms --->
intention _Parm2 0.21164 0.04212 5.02501
intention --- beh _Parm3 0.27030 0.08581 3.15016
PATH List
Path Parameter Estimate
StandardError
t Value
>
Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 4.42058 0.26050 16.96990
subnorms _Add02 7.17487 0.21277 33.72097
Error X1 _Add03 0.96696 0.14030 6.89207
X2 _Add04 1.03694 0.13055 7.94261
X3 _Add05 0.99635 0.11402 8.73828
X4 _Add06 1.11849 0.15461 7.23416
X5 _Add07 0.72892 0.11041 6.60204
X6 _Add08 0.93287 0.10954 8.51614
X7 _Add09 0.80416 0.09486 8.47695
X8 _Add10 1.03433 0.10812 9.56629
X9 _Add11 1.14329 0.11357 10.06694
X13 _Add12 0.90792 0.13571 6.69022
X14 _Add13 1.28909 0.15103 8.53510
X15 _Add14 1.06081 0.11932 8.89038
intention _Add15 0.07972 0.05739 1.38902
beh _Add16 0.97624 0.16629 5.87082
Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate
StandardError
t Value
subnorms
attitude
_Add17 4.81665 0.12501 38.53129
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X1 0.96696 5.32572 0.8184
X13 0.90792 1.94013 0.5320
X14 1.28909 2.09054 0.3834
X15 1.06081 1.61244 0.3421
X2 1.03694 4.42123 0.7655
X3 0.99635 3.32573 0.7004
X4 1.11849 8.19303 0.8635
X5 0.72892 6.22181 0.8828
X6 0.93287 4.71359 0.8021
X7 0.80416 1.75706 0.5423
X8 1.03433 1.77420 0.4170
X9 1.14329 1.65253 0.3082
beh 0.97624 1.04685 0.0675
intention 0.07972 0.96641 0.9175
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Standardized Results for PATH List
Path Parameter Estimate
StandardError
t Value
attitude --->
X1 lam1 0.90467 0.01550 58.35350
attitude --->
X2 lam2 0.87491 0.01769 49.44716
attitude --->
X3 lam3 0.83691 0.02076 40.32058
subnorms --->
X4 lam1 0.92924 0.01139 81.58953
subnorms --->
X5 lam2 0.93960 0.01050 89.46758
subnorms --->
X6 lam3 0.89559 0.01464 61.17299
intention --->
X7 lam1 0.73643 0.03369 21.86136
intention --->
X8 lam2 0.64577 0.03507 18.41129
intention --->
X9 lam3 0.55512 0.03500 15.85921
beh --->
X13 lam1 0.72941 0.03929 18.56413
beh --->
X14 lam2 0.61917 0.03716 16.66423
beh --->
X15 lam3 0.58490 0.03697 15.81994
attitude --->
intention _Parm1 0.41685 0.11486 3.62938
subnorms --->
intention _Parm2 0.57667 0.11209 5.14493
intention --- beh _Parm3 0.25971 0.07946 3.26850
Standardized Results for PATH List
Path Parameter Estimate
StandardError
t Value
>
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 1.00000
subnorms _Add02 1.00000
Error X1 _Add03 0.18156 0.02805 6.47261
X2 _Add04 0.23454 0.03096 7.57529
X3 _Add05 0.29959 0.03474 8.62323
X4 _Add06 0.13652 0.02117 6.44967
X5 _Add07 0.11715 0.01974 5.93624
X6 _Add08 0.19791 0.02622 7.54700
X7 _Add09 0.45767 0.04962 9.22448
X8 _Add10 0.58299 0.04530 12.86958
X9 _Add11 0.69184 0.03886 17.80265
X13 _Add12 0.46797 0.05732 8.16433
X14 _Add13 0.61663 0.04601 13.40190
X15 _Add14 0.65789 0.04325 15.21125
intention _Add15 0.08249 0.05547 1.48711
beh _Add16 0.93255 0.04127 22.59477
Standardized Results for Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude _Add17 0.85526 0.02363 36.19076
Simulation #4
Tested: Model 3
Data Set: Model 3_Behavior (ATT, PB, Intention in relation to Behavior)
SAS SYNTAX:
proc calis data=SASUSER.SEM_BEHDATA; path attitude ---> X1 X2 X3 = lam1 lam2 lam3, subnorms ---> X4 X5 X6 = lam1 lam2 lam3, intention ---> X7 X8 X9 = lam1 lam2 lam3, pastbeh ---> X10 X11 X12 = lam1 lam2 lam3, beh ---> X13 X14 X15 = lam1 lam2 lam3, attitude ---> intention beh, pastbeh---> intention beh, subnorms ---> intention, intention ---> beh; run;
SAS LOG:
1 proc calis data=SASUSER.SEM_BEHDATA;2 path3 attitude ---> X1 X2 X3 = lam1 lam2 lam3,4 subnorms ---> X4 X5 X6 = lam1 lam2 lam3,5 intention ---> X7 X8 X9 = lam1 lam2 lam3,6 pastbeh ---> X10 X11 X12 = lam1 lam2 lam3,7 beh ---> X13 X14 X15 = lam1 lam2 lam3,8 attitude ---> intention beh,9 pastbeh---> intention beh,10 subnorms ---> intention,11 intention ---> beh;12 run;
NOTE: Convergence criterion (GCONV=1E-8) satisfied.NOTE: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.WARNING: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.WARNING: The estimated error variance for variable beh is negative.WARNING: Although all predicted variances for the latent variables are positive, the corresponding predicted covariance matrix is not positive definite. It has one negative eigenvalue.NOTE: PROCEDURE CALIS used (Total process time): real time 1.16 seconds cpu time 0.82 seconds
SAS OUTPUT:
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Model and Initial Values
Modeling Information
Data Set SASUSER.SEM_BEHDATA
Modeling Information
N Records Read
228
N Records Used 228
N Obs 228
Model Type PATH
Analysis Covariances
Variables in the Model
Endogenous
Manifest X1 X10 X11 X12 X13 X14 X15 X2 X3 X4 X5 X6 X7 X8 X9
Latent beh intention
Exogenous Manifest
Latent attitude pastbeh subnorms
Number of Endogenous Variables = 17Number of Exogenous Variables = 3
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Descriptive Statistics
Simple Statistics
Variable Mean Std Dev
X1 X1 0.08463 3.49124
X2 X2 -0.00553 3.28606
X3 X3 -0.44982 2.72201
X4 X4 -4.65034 7.64805
X5 X5 -4.26140 6.60533
X6 X6 4.05727 5.73898
X7 X7 2.00110 2.86434
X8 X8 -0.93788 2.66446
X9 X9 -3.42226 2.53520
X10
X10 0.00404 2.52169
Simple Statistics
Variable Mean Std Dev
X11
X11 -0.22038 2.46534
X12
X12 1.88980 2.23842
X13
X13 -0.10176 1.29754
X14
X14 1.34148 1.23186
X15
X15 -0.03961 1.27580
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Initial Estimation Methods
1 Instrumental Variables Method
2 McDonald Method
3 Two-Stage Least Squares
Optimization StartParameter Estimates
N Parameter Estimate Gradient
1 lam1 1.00000 0.36281
2 lam2 0.88856 12.45473
3 lam3 0.77353 -17.20553
4 _Parm1 0.05729 0.91067
5 _Parm2 0.28379 0.17005
6 _Parm3 0.06844 0.94429
7 _Parm4 -0.08674 -0.08309
8 _Parm5 0.33393 5.45830
9 _Parm6 0.05288 0.10275
10 _Add01 11.31996 -0.15037
11 _Add02 55.05647 -0.01499
12 _Add03 6.24686 -0.28895
13 _Add04 0.86877 -0.22635
14 _Add05 1.86074 0.12035
15 _Add06 0.63606 -0.51062
16 _Add07 3.43625 0.10035
17 _Add08 0.16154 -77.60188
18 _Add09 0.01000 -122.58948
19 _Add10 0.27433 -7.13510
Optimization StartParameter Estimates
N Parameter Estimate Gradient
20 _Add11 0.83829 -0.26359
21 _Add12 1.68223 0.19783
22 _Add13 0.11203 -1.74138
23 _Add14 1.14578 -0.10634
24 _Add15 1.27273 -0.03011
25 _Add16 0.93906 -0.06054
26 _Add17 0.92964 0.00208
27 _Add18 1.18217 0.11600
28 _Add19 0.07663 -7.07095
29 _Add20 0.01000 0.21939
30 _Add21 22.47169 0.02911
31 _Add22 7.68976 0.32969
32 _Add23 15.92070 0.04665
Value of Objective Function = 14.240952318
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Levenberg-Marquardt Optimization
Scaling Update of More (1978)
Parameter Estimates 32
Functions (Observations) 120
Optimization Start
Active Constraints 0 Objective Function 14.240952318
Max Abs Gradient Element 122.58948369 Radius 1316.9455338
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
1 * 0 4 0 0.63309 13.6079 2.9088 111E-16
0.127
2 * 0 6 0 0.57576 0.0573 0.3575 111E-16
0.776
3 0 8 0 0.57192 0.00384 0.1853 0 0.853
4 * 0 10 0 0.57169 0.000223
0.0193 111E-16
0.832
5 * 0 12 0 0.57168 0.000014
0.0112 111E-16
0.854
6 0 14 0 0.57168 8.25E-7 0.000968
0 0.872
7 * 0 16 0 0.57168 5.14E-8 0.000695
111E-16
0.897
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
8 * 0 18 0 0.57168 3.263E-9
0.000048
111E-16
0.924
9 0 20 0 0.57168 2.11E-10
0.000044
0 0.954
Optimization Results
Iterations 9 Function Calls 23
Jacobian Calls 11 Active Constraints 0
Objective Function 0.5716787581 Max Abs Gradient Element 0.0000440509
Lambda 0 Actual Over Pred Change 0.9537986891
Radius 0.0070486779
Convergence criterion (GCONV=1E-8) satisfied.
Note: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.
Warning: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.
Note: Covariance matrix for the estimates is not full rank.
Note: The variance of some parameter estimates is zero or some parameter estimates are linearly related to other parameter estimates as shown in the following equations:
_Add
= 1803.276
+0.166
*lam1
+0.147
*lam2
+0.127
*lam3
- 22.27
*_Add
- 2.459
*_Add
- 0.006
*_Add
+0.029
*_Add
- 9.007
*_Add
- 3.062
*_Add
- 6.362
*_Add
01
353
895
046
770
3729
02
546
03
467
19
204
20
129
21
557
22
338
23
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Fit Summary
Modeling Info N Observations 228
N Variables 15
N Moments 120
N Parameters 32
N Active Constraints 0
Baseline Model Function Value 23.2661
Baseline Model Chi-Square 5281.3943
Baseline Model Chi-Square DF 105
Pr > Baseline Model Chi-Square <.0001
Absolute Index Fit Function 0.5717
Chi-Square 129.7711
Chi-Square DF 88
Pr > Chi-Square 0.0025
Z-Test of Wilson & Hilferty 2.8011
Hoelter Critical N 194
Root Mean Square Residual (RMSR) 0.5067
Standardized RMSR (SRMSR) 0.0560
Goodness of Fit Index (GFI) 0.9258
Parsimony Index Adjusted GFI (AGFI) 0.8989
Parsimonious GFI 0.7759
RMSEA Estimate 0.0457
RMSEA Lower 90% Confidence Limit 0.0276
RMSEA Upper 90% Confidence Limit 0.0618
Probability of Close Fit 0.6500
ECVI Estimate 0.8750
Fit Summary
ECVI Lower 90% Confidence Limit 0.7573
ECVI Upper 90% Confidence Limit 1.0309
Akaike Information Criterion 193.7711
Bozdogan CAIC 335.5101
Schwarz Bayesian Criterion 303.5101
McDonald Centrality 0.9125
Incremental Index
Bentler Comparative Fit Index 0.9919
Bentler-Bonett NFI 0.9754
Bentler-Bonett Non-normed Index 0.9904
Bollen Normed Index Rho1 0.9707
Bollen Non-normed Index Delta2 0.9920
James et al. Parsimonious NFI 0.8175
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
PATH List
Path Parameter Estimate
StandardError
t Value
attitude --->
X1 lam1 0.94411 0.04452 21.20833
attitude --->
X2 lam2 0.83182 0.03957 21.01906
attitude --->
X3 lam3 0.72278 0.03446 20.97371
subnorms --->
X4 lam1 0.94411 0.04452 21.20833
subnorms --->
X5 lam2 0.83182 0.03957 21.01906
subnorms --->
X6 lam3 0.72278 0.03446 20.97371
intention --->
X7 lam1 0.94411 0.04452 21.20833
intention --->
X8 lam2 0.83182 0.03957 21.01906
intention --->
X9 lam3 0.72278 0.03446 20.97371
pastbeh --->
X10 lam1 0.94411 0.04452 21.20833
pastbeh --->
X11 lam2 0.83182 0.03957 21.01906
pastbeh --->
X12 lam3 0.72278 0.03446 20.97371
beh --->
X13 lam1 0.94411 0.04452 21.20833
beh --->
X14 lam2 0.83182 0.03957 21.01906
beh --- X15 lam3 0.72278 0.03446 20.97371
PATH List
Path Parameter Estimate
StandardError
t Value
>
attitude --->
intention _Parm1 0.06746 0.04974 1.35613
attitude --->
beh _Parm2 0.28658 0.04922 5.82215
pastbeh --->
intention _Parm3 0.08116 0.05882 1.37982
pastbeh --->
beh _Parm4 -0.08894 0.05576 -1.59493
subnorms --->
intention _Parm5 0.32410 0.01532 21.15536
intention --->
beh _Parm6 0.05082 0.04363 1.16463
Variance Parameters
VarianceType
Variable Parameter Estimate
StandardError
t Value
Exogenous
attitude _Add01 12.80340 0.73405 17.44209
subnorms _Add02 62.99993 0.60672 103.83612
pastbeh _Add03 6.95668 0.48362 14.38449
Error X1 _Add04 1.12245 0.15343 7.31578
X2 _Add05 1.21204 0.14641 8.27854
X3 _Add06 1.01754 0.11933 8.52693
X4 _Add07 0.79370 0.14471 5.48486
X5 _Add08 1.26576 0.15723 8.05035
X6 _Add09 1.02833 0.12459 8.25387
X7 _Add10 1.01916 0.11062 9.21336
X8 _Add11 0.91068 0.09601 9.48540
X9 _Add12 1.05184 0.10487 10.03019
X10 _Add13 0.78918 0.11666 6.76460
Variance Parameters
VarianceType
Variable Parameter Estimate
StandardError
t Value
X11 _Add14 0.91937 0.11390 8.07138
X12 _Add15 0.96620 0.10945 8.82809
X13 _Add16 1.06074 0.10911 9.72145
X14 _Add17 0.98646 0.09856 10.00863
X15 _Add18 1.03758 0.10015 10.36060
intention _Add19 0.01829 0.06028 0.30345
beh _Add20 -0.08260 0.05478 -1.50789
Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude _Add21 25.47614 0.71109 35.82691
pastbeh attitude _Add22 8.66226 0.49140 17.62772
pastbeh subnorms _Add23 17.99550 0.66843 26.92206
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X1 1.12245 12.53462 0.9105
X10 0.78918 6.98994 0.8871
X11 0.91937 5.73292 0.8396
X12 0.96620 4.60047 0.7900
X13 1.06074 1.79911 0.4104
X14 0.98646 1.55965 0.3675
X15 1.03758 1.47034 0.2943
X2 1.21204 10.07113 0.8797
X3 1.01754 7.70621 0.8680
X4 0.79370 56.94800 0.9861
X5 1.26576 44.85745 0.9718
X6 1.02833 33.94037 0.9697
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X7 1.01916 8.94791 0.8861
X8 0.91068 7.06564 0.8711
X9 1.05184 5.69888 0.8154
beh -0.08260 0.82839 .
intention 0.01829 8.89531 0.9979
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Standardized Results for PATH List
Path Parameter Estimate StandardError
t Value
attitude ---> X1 lam1 0.95418 0.00729 130.85963
attitude ---> X2 lam2 0.93790 0.00890 105.41700
attitude ---> X3 lam3 0.93164 0.00953 97.76019
subnorms
---> X4 lam1 0.99301 0.00143 693.47773
subnorms
---> X5 lam2 0.98579 0.00219 449.24742
subnorms
---> X6 lam3 0.98473 0.00232 424.56719
intention ---> X7 lam1 0.94133 0.00801 117.59053
intention ---> X8 lam2 0.93333 0.00884 105.55467
intention ---> X9 lam3 0.90301 0.01189 75.95131
pastbeh ---> X10 lam1 0.94186 0.00968 97.30359
pastbeh ---> X11 lam2 0.91632 0.01187 77.22318
pastbeh ---> X12 lam3 0.88881 0.01429 62.20646
beh ---> X13 lam1 0.64063 0.03826 16.74237
beh ---> X14 lam2 0.60623 0.03812 15.90372
beh ---> X15 lam3 0.54252 0.03707 14.63637
attitude ---> intention
_Parm1 0.08093 0.05969 1.35596
attitude ---> beh _Parm2 1.12666 0.18908 5.95859
pastbeh ---> intention
_Parm3 0.07177 0.05202 1.37974
pastbeh ---> beh _Parm4 -0.25773 0.16149 -1.59594
subnorms
---> intention
_Parm5 0.86251 0.03839 22.46427
Standardized Results for PATH List
Path Parameter Estimate StandardError
t Value
intention ---> beh _Parm6 0.16653 0.14293 1.16508
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 1.00000
subnorms _Add02 1.00000
pastbeh _Add03 1.00000
Error X1 _Add04 0.08955 0.01391 6.43537
X2 _Add05 0.12035 0.01669 7.21124
X3 _Add06 0.13204 0.01776 7.43606
X4 _Add07 0.01394 0.00284 4.90091
X5 _Add08 0.02822 0.00433 6.52233
X6 _Add09 0.03030 0.00457 6.63276
X7 _Add10 0.11390 0.01507 7.55757
X8 _Add11 0.12889 0.01651 7.80887
X9 _Add12 0.18457 0.02147 8.59568
X10 _Add13 0.11290 0.01823 6.19196
X11 _Add14 0.16037 0.02175 7.37463
X12 _Add15 0.21002 0.02540 8.26908
X13 _Add16 0.58959 0.04903 12.02596
X14 _Add17 0.63249 0.04622 13.68527
X15 _Add18 0.70567 0.04022 17.54591
intention _Add19 0.00206 0.00677 0.30397
beh _Add20 -0.09971 0.07259 -1.37360
Standardized Results for Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude _Add21 0.89702 0.01471 60.96711
pastbeh attitude _Add22 0.91784 0.01436 63.93393
pastbeh subnorms _Add23 0.85959 0.01971 43.61092
Simulation #5
Tested: Model 2
Data Set: Model 3_Behavior (ATT, PB, Intention in relation to Behavior)
SAS SYNTAX:
proc calis data=SASUSER.SEM_BEHDATA; path attitude ---> X1 X2 X3 = lam1 lam2 lam3, subnorms ---> X4 X5 X6 = lam1 lam2 lam3, intention ---> X7 X8 X9 = lam1 lam2 lam3, beh ---> X13 X14 X15 = lam1 lam2 lam3, attitude ---> intention beh, subnorms ---> intention, intention ---> beh;run;
SAS LOG:
1 proc calis data=SASUSER.SEM_BEHDATA;2 path3 attitude ---> X1 X2 X3 = lam1 lam2 lam3,4 subnorms ---> X4 X5 X6 = lam1 lam2 lam3,5 intention ---> X7 X8 X9 = lam1 lam2 lam3,6 beh ---> X13 X14 X15 = lam1 lam2 lam3,7 attitude ---> intention beh,8 subnorms ---> intention,9 intention ---> beh;10 run;
NOTE: Convergence criterion (GCONV=1E-8) satisfied.NOTE: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.WARNING: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.WARNING: The estimated error variance for variable beh is negative.WARNING: Although all predicted variances for the latent variables are positive, the corresponding predicted covariance matrix is not positive definite. It has one negative eigenvalue.NOTE: PROCEDURE CALIS used (Total process time): real time 1.11 seconds cpu time 0.76 seconds
SAS OUTPUT:
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Model and Initial Values
Modeling Information
Data Set SASUSER.SEM_BEHDATA
N Records Read
228
N Records Used 228
N Obs 228
Model Type PATH
Analysis Covariances
Variables in the Model
Endogenous
Manifest X1 X13 X14 X15 X2 X3 X4 X5 X6 X7 X8 X9
Latent beh intention
Exogenous Manifest
Latent attitude subnorms
Number of Endogenous Variables = 14Number of Exogenous Variables = 2
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Descriptive Statistics
Simple Statistics
Variable Mean Std Dev
X1 X1 0.08463 3.49124
X2 X2 -0.00553 3.28606
X3 X3 -0.44982 2.72201
X4 X4 -4.65034 7.64805
X5 X5 -4.26140 6.60533
X6 X6 4.05727 5.73898
Simple Statistics
Variable Mean Std Dev
X7 X7 2.00110 2.86434
X8 X8 -0.93788 2.66446
X9 X9 -3.42226 2.53520
X13
X13 -0.10176 1.29754
X14
X14 1.34148 1.23186
X15
X15 -0.03961 1.27580
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Initial Estimation Methods
1 Instrumental Variables Method
2 McDonald Method
3 Two-Stage Least Squares
Optimization StartParameter Estimates
N Parameter Estimate Gradient
1 lam1 1.00000 0.05099
2 lam2 0.88258 -0.71220
3 lam3 0.76698 -1.00534
4 _Parm1 0.09720 1.79477
5 _Parm2 0.23575 0.13456
6 _Parm3 0.33712 4.21131
7 _Parm4 0.03835 0.00696
8 _Add01 11.42750 -0.01591
9 _Add02 55.58316 -0.00348
10 _Add03 0.76123 -0.27455
11 _Add04 1.89673 0.11392
12 _Add05 0.68699 -0.41200
13 _Add06 2.90956 0.16265
14 _Add07 0.33377 -4.58306
15 _Add08 0.23842 -6.76093
16 _Add09 0.20017 -8.93301
17 _Add10 0.86443 -0.18205
18 _Add11 1.71860 0.19553
19 _Add12 0.93214 -0.06896
Optimization StartParameter Estimates
N Parameter Estimate Gradient
20 _Add13 0.93212 0.0004969
21 _Add14 1.18560 0.11979
22 _Add15 0.09373 -6.99976
23 _Add16 0.01000 0.20968
24 _Add17 22.66725 0.01566
Value of Objective Function = 3.8871557782
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Levenberg-Marquardt Optimization
Scaling Update of More (1978)
Parameter Estimates 24
Functions (Observations) 78
Optimization Start
Active Constraints 0 Objective Function 3.8871557782
Max Abs Gradient Element 8.9330099601 Radius 97.501600999
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
1 * 0 4 0 0.39783 3.4893 1.3617 111E-16
0.404
2 * 0 6 0 0.36513 0.0327 0.0915 111E-16
0.974
3 * 0 8 0 0.36348 0.00165 0.0666 111E-16
1.012
4 * 0 10 0 0.36341 0.000072
0.00598 111E-16
1.033
5 * 0 12 0 0.36340 3.573E-6
0.00307 111E-16
1.064
6 * 0 14 0 0.36340 1.811E-7
0.000283
111E-16
1.091
7 * 0 16 0 0.36340 9.36E-9 0.00014 111E- 1.116
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
0 16
8 0 18 0 0.36340 4.9E-10 0.000014
0 1.137
Optimization Results
Iterations 8 Function Calls 21
Jacobian Calls 10 Active Constraints 0
Objective Function 0.3634029965 Max Abs Gradient Element 0.0000136979
Lambda 0 Actual Over Pred Change 1.1365563738
Radius 0.015509586
Convergence criterion (GCONV=1E-8) satisfied.
Note: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.
Warning: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.
Note: Covariance matrix for the estimates is not full rank.
Note: The variance of some parameter estimates is zero or some parameter estimates are linearly related to other parameter estimates as shown in the following equations:
lam2
= -88.642173
- 0.012817
* lam1
- 0.009719
* lam3
+ 0.277600
* _Add01
+ 1.366098
* _Add02
+ 0.000498
* _Add15
- 0.001615
* _Add16
+ 0.552380
* _Add17
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Fit Summary
Modeling Info N Observations 228
N Variables 12
N Moments 78
N Parameters 24
N Active Constraints 0
Baseline Model Function Value 18.7765
Baseline Model Chi-Square 4262.2653
Baseline Model Chi-Square DF 66
Pr > Baseline Model Chi-Square <.0001
Absolute Index Fit Function 0.3634
Chi-Square 82.4925
Chi-Square DF 54
Pr > Chi-Square 0.0075
Z-Test of Wilson & Hilferty 2.4290
Hoelter Critical N 199
Root Mean Square Residual (RMSR) 0.5319
Standardized RMSR (SRMSR) 0.0558
Goodness of Fit Index (GFI) 0.9406
Parsimony Index Adjusted GFI (AGFI) 0.9143
Parsimonious GFI 0.7696
RMSEA Estimate 0.0482
RMSEA Lower 90% Confidence Limit 0.0254
RMSEA Upper 90% Confidence Limit 0.0682
Probability of Close Fit 0.5347
ECVI Estimate 0.5877
Fit Summary
ECVI Lower 90% Confidence Limit 0.4965
ECVI Upper 90% Confidence Limit 0.7163
Akaike Information Criterion 130.4925
Bozdogan CAIC 236.7968
Schwarz Bayesian Criterion 212.7968
McDonald Centrality 0.9394
Incremental Index
Bentler Comparative Fit Index 0.9932
Bentler-Bonett NFI 0.9806
Bentler-Bonett Non-normed Index 0.9917
Bollen Normed Index Rho1 0.9763
Bollen Non-normed Index Delta2 0.9932
James et al. Parsimonious NFI 0.8023
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
PATH List
Path Parameter Estimate
StandardError
t Value
attitude --->
X1 lam1 1.02096 0.04824 21.16326
attitude --->
X2 lam2 0.89105 0.04256 20.93433
attitude --->
X3 lam3 0.77418 0.03705 20.89547
subnorms --->
X4 lam1 1.02096 0.04824 21.16326
subnorms --->
X5 lam2 0.89105 0.04256 20.93433
subnorms --->
X6 lam3 0.77418 0.03705 20.89547
intention --->
X7 lam1 1.02096 0.04824 21.16326
intention --->
X8 lam2 0.89105 0.04256 20.93433
intention --->
X9 lam3 0.77418 0.03705 20.89547
beh --->
X13 lam1 1.02096 0.04824 21.16326
beh --->
X14 lam2 0.89105 0.04256 20.93433
beh --->
X15 lam3 0.77418 0.03705 20.89547
attitude --->
intention _Parm1 0.11243 0.03462 3.24767
attitude --->
beh _Parm2 0.23878 0.03610 6.61452
subnorms --- intention _Parm3 0.32927 0.01541 21.36184
PATH List
Path Parameter Estimate
StandardError
t Value
>
intention --->
beh _Parm4 0.03464 0.04262 0.81269
Variance Parameters
VarianceType
Variable Parameter Estimate
StandardError
t Value
Exogenous
attitude _Add01 11.05675 0.65438 16.89647
subnorms _Add02 54.41143 0.38422 141.61406
Error X1 _Add03 1.14034 0.16295 6.99802
X2 _Add04 1.24634 0.15358 8.11515
X3 _Add05 0.98082 0.11929 8.22242
X4 _Add06 0.75622 0.14306 5.28609
X5 _Add07 1.27384 0.15688 8.11958
X6 _Add08 1.03241 0.12418 8.31376
X7 _Add09 1.02285 0.11166 9.16004
X8 _Add10 0.91879 0.09689 9.48237
X9 _Add11 1.05148 0.10499 10.01526
X13 _Add12 1.06234 0.10957 9.69559
X14 _Add13 0.98983 0.09881 10.01711
X15 _Add14 1.03485 0.09989 10.35960
intention _Add15 0.01983 0.05296 0.37451
beh _Add16 -0.06434 0.04680 -1.37480
Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate
StandardError
t Value
subnorms
attitude
_Add17 22.00121 0.65249 33.71885
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X1 1.14034 12.66547 0.9100
X13 1.06234 1.80832 0.4125
X14 0.98983 1.55804 0.3647
X15 1.03485 1.46379 0.2930
X2 1.24634 10.02501 0.8757
X3 0.98082 7.60780 0.8711
X4 0.75622 57.47256 0.9868
X5 1.27384 44.47460 0.9714
X6 1.03241 33.64447 0.9693
X7 1.02285 9.03657 0.8868
X8 0.91879 7.02283 0.8692
X9 1.05148 5.65939 0.8142
beh -0.06434 0.71566 .
intention 0.01983 7.68805 0.9974
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Standardized Results for PATH List
Path Parameter Estimate StandardError
t Value
attitude ---> X1 lam1 0.95392 0.00756 126.24040
attitude ---> X2 lam2 0.93578 0.00929 100.73376
attitude ---> X3 lam3 0.93331 0.00954 97.87219
subnorms
---> X4 lam1 0.99340 0.00139 713.20903
subnorms
---> X5 lam2 0.98557 0.00222 444.51270
subnorms
---> X6 lam3 0.98454 0.00234 420.67693
intention ---> X7 lam1 0.94171 0.00799 117.88479
intention ---> X8 lam2 0.93229 0.00897 103.90016
intention ---> X9 lam3 0.90233 0.01198 75.32850
beh ---> X13 lam1 0.64228 0.03832 16.76236
beh ---> X14 lam2 0.60390 0.03815 15.82949
beh ---> X15 lam3 0.54133 0.03709 14.59602
attitude ---> intention
_Parm1 0.13484 0.04155 3.24523
attitude ---> beh _Parm2 0.93853 0.13766 6.81753
subnorms
---> intention
_Parm3 0.87598 0.03851 22.74563
intention ---> beh _Parm4 0.11353 0.13966 0.81287
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 1.00000
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
subnorms _Add02 1.00000
Error X1 _Add03 0.09004 0.01442 6.24535
X2 _Add04 0.12432 0.01739 7.15076
X3 _Add05 0.12892 0.01780 7.24276
X4 _Add06 0.01316 0.00277 4.75473
X5 _Add07 0.02864 0.00437 6.55356
X6 _Add08 0.03069 0.00461 6.65874
X7 _Add09 0.11319 0.01505 7.52324
X8 _Add10 0.13083 0.01673 7.81961
X9 _Add11 0.18579 0.02162 8.59459
X13 _Add12 0.58747 0.04922 11.93551
X14 _Add13 0.63530 0.04608 13.78749
X15 _Add14 0.70697 0.04015 17.60692
intention _Add15 0.00258 0.00687 0.37530
beh _Add16 -0.08990 0.07135 -1.25997
Standardized Results for Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude _Add17 0.89699 0.01472 60.93434
Simulation #6
Tested: Model 1
Data Set: Model 3_Behavior (ATT, PB, Intention in relation to Behavior)
SAS SYNTAX:
proc calis data=SASUSER.SEM_BEHDATA; pathattitude ---> X1 X2 X3 = lam1 lam2 lam3, subnorms ---> X4 X5 X6 = lam1 lam2 lam3, intention ---> X7 X8 X9 = lam1 lam2 lam3, beh ---> X13 X14 X15 = lam1 lam2 lam3, attitude ---> intention, subnorms ---> intention, intention ---> beh;run;
SAS LOG:
1 proc calis data=SASUSER.SEM_BEHDATA;2 path3 attitude ---> X1 X2 X3 = lam1 lam2 lam3,4 subnorms ---> X4 X5 X6 = lam1 lam2 lam3,5 intention ---> X7 X8 X9 = lam1 lam2 lam3,6 beh ---> X13 X14 X15 = lam1 lam2 lam3,7 attitude ---> intention,8 subnorms ---> intention,9 intention ---> beh;10 run;
NOTE: Convergence criterion (GCONV=1E-8) satisfied.NOTE: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.WARNING: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.WARNING: The estimated error variance for variable intention is negative.WARNING: Although all predicted variances for the latent variables are positive, the corresponding predicted covariance matrix is not positive definite. It has one negative eigenvalue.NOTE: PROCEDURE CALIS used (Total process time): real time 1.16 seconds cpu time 0.73 seconds
SAS OUTPUT:
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Model and Initial Values
Modeling Information
Data Set SASUSER.SEM_BEHDATA
N Records Read
228
Modeling Information
N Records Used 228
N Obs 228
Model Type PATH
Analysis Covariances
Variables in the Model
Endogenous
Manifest X1 X13 X14 X15 X2 X3 X4 X5 X6 X7 X8 X9
Latent beh intention
Exogenous Manifest
Latent attitude subnorms
Number of Endogenous Variables = 14Number of Exogenous Variables = 2
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Descriptive Statistics
Simple Statistics
Variable Mean Std Dev
X1 X1 0.08463 3.49124
X2 X2 -0.00553 3.28606
X3 X3 -0.44982 2.72201
X4 X4 -4.65034 7.64805
X5 X5 -4.26140 6.60533
X6 X6 4.05727 5.73898
X7 X7 2.00110 2.86434
X8 X8 -0.93788 2.66446
X9 X9 -3.42226 2.53520
X13
X13 -0.10176 1.29754
X1 X14 1.34148 1.23186
Simple Statistics
Variable Mean Std Dev
4
X15
X15 -0.03961 1.27580
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Initial Estimation Methods
1 Instrumental Variables Method
2 McDonald Method
3 Two-Stage Least Squares
Optimization StartParameter Estimates
N Parameter Estimate Gradient
1 lam1 1.00000 0.02184
2 lam2 0.88258 -0.65891
3 lam3 0.76698 -1.00265
4 _Parm1 0.09720 1.55402
5 _Parm2 0.33712 4.28227
6 _Parm3 0.29918 0.08160
7 _Add01 11.42750 -0.01855
8 _Add02 55.58316 -0.00387
9 _Add03 0.76123 -0.27502
10 _Add04 1.89673 0.10599
11 _Add05 0.68699 -0.38154
12 _Add06 2.90956 0.16250
13 _Add07 0.33377 -4.55207
14 _Add08 0.23842 -6.79937
15 _Add09 0.20017 -9.05307
16 _Add10 0.86443 -0.18029
17 _Add11 1.71860 0.19560
18 _Add12 0.93214 -0.04391
19 _Add13 0.93212 -0.08743
Optimization StartParameter Estimates
N Parameter Estimate Gradient
20 _Add14 1.18560 0.09489
21 _Add15 0.09373 -6.80858
22 _Add16 0.06163 -0.00223
23 _Add17 22.66725 0.01770
Value of Objective Function = 4.0659704694
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Levenberg-Marquardt Optimization
Scaling Update of More (1978)
Parameter Estimates 23
Functions (Observations) 78
Optimization Start
Active Constraints 0 Objective Function 4.0659704694
Max Abs Gradient Element 9.0530710437 Radius 99.053838136
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
1 * 0 4 0 0.58507 3.4809 1.3512 111E-16
0.401
2 * 0 6 0 0.53391 0.0512 0.1266 111E-16
0.971
3 * 0 8 0 0.52943 0.00448 0.0922 111E-16
0.997
4 * 0 10 0 0.52915 0.000284
0.0102 111E-16
0.984
5 * 0 12 0 0.52912 0.000022
0.00702 111E-16
0.981
6 * 0 14 0 0.52912 1.73E-6 0.000872
111E-16
0.979
7 * 0 16 0 0.52912 1.37E-7 0.00055 111E- 0.976
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
7 16
8 * 0 18 0 0.52912 1.087E-8
0.000072
111E-16
0.974
9 * 0 20 0 0.52912 8.63E-10
0.000044
111E-16
0.972
Optimization Results
Iterations 9 Function Calls 23
Jacobian Calls 11 Active Constraints 0
Objective Function 0.5291221419 Max Abs Gradient Element 0.0000443914
Lambda 1.110223E-14 Actual Over Pred Change 0.9719668535
Radius 57055.010766
Convergence criterion (GCONV=1E-8) satisfied.
Note: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.
Warning: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.
Note: Covariance matrix for the estimates is not full rank.
Note: The variance of some parameter estimates is zero or some parameter estimates are linearly related to other parameter estimates as shown in the following equations:
_Add02
= 1878.002217
+ 1.53227
* lam1
+ 1.33565
* lam2
+ 1.16154
* lam3
- 33.249347
* _Add01
+ 0.01345
* _Add15
- 0.06759
* _Add16
- 66.203578
* _Add17
2 1 3 3 5
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Fit Summary
Modeling Info N Observations 228
N Variables 12
N Moments 78
N Parameters 23
N Active Constraints 0
Baseline Model Function Value 18.7765
Baseline Model Chi-Square 4262.2653
Baseline Model Chi-Square DF 66
Pr > Baseline Model Chi-Square <.0001
Absolute Index Fit Function 0.5291
Chi-Square 120.1107
Chi-Square DF 55
Pr > Chi-Square <.0001
Z-Test of Wilson & Hilferty 4.7423
Hoelter Critical N 139
Root Mean Square Residual (RMSR) 0.5419
Standardized RMSR (SRMSR) 0.0607
Goodness of Fit Index (GFI) 0.9162
Parsimony Index Adjusted GFI (AGFI) 0.8811
Parsimonious GFI 0.7635
RMSEA Estimate 0.0722
RMSEA Lower 90% Confidence Limit 0.0546
RMSEA Upper 90% Confidence Limit 0.0898
Probability of Close Fit 0.0206
ECVI Estimate 0.7441
Fit Summary
ECVI Lower 90% Confidence Limit 0.6196
ECVI Upper 90% Confidence Limit 0.9049
Akaike Information Criterion 166.1107
Bozdogan CAIC 267.9857
Schwarz Bayesian Criterion 244.9857
McDonald Centrality 0.8669
Incremental Index
Bentler Comparative Fit Index 0.9845
Bentler-Bonett NFI 0.9718
Bentler-Bonett Non-normed Index 0.9814
Bollen Normed Index Rho1 0.9662
Bollen Non-normed Index Delta2 0.9845
James et al. Parsimonious NFI 0.8098
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
PATH List
Path Parameter Estimate
StandardError
t Value
attitude --->
X1 lam1 1.02020 0.04821 21.16159
attitude --->
X2 lam2 0.88929 0.04248 20.93349
attitude --->
X3 lam3 0.77336 0.03701 20.89356
subnorms --->
X4 lam1 1.02020 0.04821 21.16159
subnorms --->
X5 lam2 0.88929 0.04248 20.93349
subnorms --->
X6 lam3 0.77336 0.03701 20.89356
intention --->
X7 lam1 1.02020 0.04821 21.16159
intention --->
X8 lam2 0.88929 0.04248 20.93349
intention --->
X9 lam3 0.77336 0.03701 20.89356
beh --->
X13 lam1 1.02020 0.04821 21.16159
beh --->
X14 lam2 0.88929 0.04248 20.93349
beh --->
X15 lam3 0.77336 0.03701 20.89356
attitude --->
intention _Parm1 0.16871 0.03323 5.07765
subnorms --->
intention _Parm2 0.30601 0.01482 20.65263
intention --- beh _Parm3 0.30105 0.01663 18.10657
PATH List
Path Parameter Estimate
StandardError
t Value
>
Variance Parameters
VarianceType
Variable Parameter Estimate
StandardError
t Value
Exogenous
attitude _Add01 11.06884 0.65512 16.89600
subnorms _Add02 54.52913 0.38458 141.78801
Error X1 _Add03 1.13869 0.16694 6.82084
X2 _Add04 1.28985 0.15947 8.08844
X3 _Add05 0.95313 0.11878 8.02413
X4 _Add06 0.76001 0.14368 5.28963
X5 _Add07 1.26192 0.15600 8.08913
X6 _Add08 1.03772 0.12474 8.31943
X7 _Add09 1.06710 0.11251 9.48480
X8 _Add10 0.92693 0.09554 9.70170
X9 _Add11 1.06303 0.10475 10.14859
X13 _Add12 0.99417 0.10785 9.21852
X14 _Add13 1.03431 0.10568 9.78744
X15 _Add14 1.04740 0.10352 10.11829
intention _Add15 -0.00448 0.04707 -0.09514
beh _Add16 0.02250 0.05119 0.43963
Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate
StandardError
t Value
subnorms
attitude
_Add17 22.03943 0.65362 33.71904
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X1 1.13869 12.65920 0.9101
X13 0.99417 1.74321 0.4297
X14 1.03431 1.60344 0.3549
X15 1.04740 1.47783 0.2913
X2 1.28985 10.04343 0.8716
X3 0.95313 7.57332 0.8741
X4 0.76001 57.51425 0.9868
X5 1.26192 44.38526 0.9716
X6 1.03772 33.65117 0.9692
X7 1.06710 9.07335 0.8824
X8 0.92693 7.01028 0.8678
X9 1.06303 5.66377 0.8123
beh 0.02250 0.71967 0.9687
intention -0.00448 7.69236 .
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Standardized Results for PATH List
Path Parameter Estimate StandardError
t Value
attitude ---> X1 lam1 0.95397 0.00769 124.12312
attitude ---> X2 lam2 0.93358 0.00959 97.32278
attitude ---> X3 lam3 0.93496 0.00947 98.75318
subnorms
---> X4 lam1 0.99337 0.00140 710.50840
subnorms
---> X5 lam2 0.98568 0.00221 446.73248
subnorms
---> X6 lam3 0.98446 0.00235 418.75405
intention ---> X7 lam1 0.93936 0.00811 115.80896
intention ---> X8 lam2 0.93155 0.00894 104.18405
intention ---> X9 lam3 0.90128 0.01200 75.11723
beh ---> X13 lam1 0.65551 0.03862 16.97130
beh ---> X14 lam2 0.59577 0.03819 15.60053
beh ---> X15 lam3 0.53968 0.03708 14.55592
attitude ---> intention
_Parm1 0.20238 0.03988 5.07519
subnorms
---> intention
_Parm2 0.81474 0.03745 21.75328
intention ---> beh _Parm3 0.98424 0.03506 28.07583
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 1.00000
subnorms _Add02 1.00000
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Error X1 _Add03 0.08995 0.01466 6.13419
X2 _Add04 0.12843 0.01791 7.17028
X3 _Add05 0.12585 0.01770 7.10891
X4 _Add06 0.01321 0.00278 4.75730
X5 _Add07 0.02843 0.00435 6.53637
X6 _Add08 0.03084 0.00463 6.66215
X7 _Add09 0.11761 0.01524 7.71772
X8 _Add10 0.13222 0.01666 7.93730
X9 _Add11 0.18769 0.02163 8.67811
X13 _Add12 0.57031 0.05064 11.26276
X14 _Add13 0.64505 0.04550 14.17562
X15 _Add14 0.70874 0.04002 17.71012
intention _Add15 -0.0005822 0.00612 -0.09510
beh _Add16 0.03127 0.06901 0.45311
Standardized Results for Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude _Add17 0.89709 0.01471 60.96815
SIMULATION #7
Tested: Model 3 (Intention Partial Mediates the Effects of Attitude & Past Behavior on Behavior)
Data Set: Random
SAS SYNTAX:
proc calis data=SASUSER.SEM_RANDOMDATA; path attitude ---> X1 X2 X3 = lam1 lam2 lam3, subnorms ---> X4 X5 X6 = lam1 lam2 lam3, intention ---> X7 X8 X9 = lam1 lam2 lam3,
pastbeh ---> X10 X11 X12 = lam1 lam2 lam3, beh ---> X13 X14 X15 = lam1 lam2 lam3, attitude ---> intention beh, pastbeh---> intention beh, subnorms ---> intention, intention ---> beh; run;
SAS LOG:
1 proc calis data=SASUSER.SEM_RANDOMDATA;2 path3 attitude ---> X1 X2 X3 = lam1 lam2 lam3,4 subnorms ---> X4 X5 X6 = lam1 lam2 lam3,5 intention ---> X7 X8 X9 = lam1 lam2 lam3,6 pastbeh ---> X10 X11 X12 = lam1 lam2 lam3,7 beh ---> X13 X14 X15 = lam1 lam2 lam3,8 attitude ---> intention beh,9 pastbeh---> intention beh,10 subnorms ---> intention,11 intention ---> beh;12 run;
ERROR: LEVMAR Optimization cannot be completed.NOTE: LEVMAR needs more than 50 iterations or 500 function calls.NOTE: Due to optimization failure, statistics in the Fit Summary table might not be appropriate.NOTE: Due to optimization failure, standard error estimates are not computed.WARNING: Number of zero or negative variances encountered when computing standardized results: 1. Standardization with these values was not done.NOTE: PROCEDURE CALIS used (Total process time): real time 1.26 seconds cpu time 0.82 seconds
SAS OUTPUT:
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Model and Initial Values
Modeling Information
Data Set SASUSER.SEM_RANDOMDATA
N Records Read
228
N Records Used 228
N Obs 228
Model Type PATH
Analysis Covariances
Variables in the Model
Endogenous
Manifest X1 X10 X11 X12 X13 X14 X15 X2 X3 X4 X5 X6 X7 X8 X9
Variables in the Model
Latent beh intention
Exogenous Manifest
Latent attitude pastbeh subnorms
Number of Endogenous Variables = 17Number of Exogenous Variables = 3
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Descriptive Statistics
Simple Statistics
Variable Mean Std Dev
X1 X1 3.96942 1.67800
X2 X2 3.92882 1.68062
X3 X3 4.01325 1.74491
X4 X4 3.90928 1.74093
X5 X5 3.92321 1.80255
X6 X6 3.96071 1.68701
X7 X7 4.10400 1.78364
X8 X8 4.11832 1.75092
X9 X9 3.95523 1.67310
X10 X10
4.20442 1.66872
X11 X11
4.06377 1.73203
X12 X12
4.04980 1.69682
X13 X13
4.02703 1.70790
X14 X14
4.16736 1.81132
X15 X15
4.04412 1.73333
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Initial Estimation Methods
1 Instrumental Variables Method
2 McDonald Method
3 Two-Stage Least Squares
Optimization StartParameter Estimates
N Parameter Estimate Gradient
1 lam1 1.00000 -0.00814
2 lam2 0.10976 0.05704
3 lam3 0.35586 0.02582
4 _Parm1 0.00100 0.01048
5 _Parm2 0.01000 0.00494
6 _Parm3 0.00100 -0.00524
7 _Parm4 0.01000 0.0007097
8 _Parm5 0.00100 -0.01103
9 _Parm6 0.01000 -0.00147
10 _Add01 0.36572 0.0005640
11 _Add02 0.33939 -0.0001756
12 _Add03 0.10000 0.01353
13 _Add04 2.44997 -0.0003409
14 _Add05 2.82007 -0.00116
15 _Add06 2.99841 0.00140
16 _Add07 2.69147 0.00456
17 _Add08 3.24509 -0.0006077
18 _Add09 2.80304 -0.00348
19 _Add10 3.08138 -0.0005114
Optimization StartParameter Estimates
N Parameter Estimate Gradient
20 _Add11 3.06450 -0.0001119
21 _Add12 2.78659 -0.0004828
22 _Add13 2.68462 -0.0004177
23 _Add14 2.99872 -0.0002916
24 _Add15 2.86653 -0.0002666
25 _Add16 2.81694 -0.0002193
26 _Add17 3.27968 0.0000626
27 _Add18 2.99178 -0.0005133
28 _Add19 0.10000 0.01598
29 _Add20 0.10006 0.00955
30 _Add21 -0.29481 0.00135
31 _Add22 0 0.03727
32 _Add23 0 0.07304
Value of Objective Function = 0.4667643241
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Levenberg-Marquardt Optimization
Scaling Update of More (1978)
Parameter Estimates 32
Functions (Observations) 120
Optimization Start
Active Constraints 0 Objective Function 0.4667643241
Max Abs Gradient Element 0.0730430547 Radius 1
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
1 0 5 0 0.45034 0.0164 0.0290 1.598 0.677
2 * 0 7 0 0.44315 0.00719 0.0179 0.563 0.773
3 * 0 9 0 0.43869 0.00446 0.0146 0.0765 0.997
4 * 0 11 0 0.43305 0.00564 0.0163 0.0212 1.067
5 * 0 13 0 0.42660 0.00645 0.0225 0.00349
1.060
6 0 16 0 0.42350 0.00310 0.0107 0.0151 1.092
7 * 0 18 0 0.42057 0.00293 0.0217 0.00899
1.154
8 * 0 20 0 0.41995 0.000626
0.0610 0.00243
0.153
9 * 0 22 0 0.41603 0.00391 0.0915 0.0011 0.758
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
0
10 0 25 0 0.41494 0.00110 0.00891 0.00332
0.942
11 * 0 27 0 0.41473 0.000208
0.0311 0.00139
0.743
12 0 29 0 0.41456 0.000167
0.0275 0.00091
0.862
13 0 32 0 0.41449 0.000072
0.00674 0.00126
0.967
14 0 34 0 0.41443 0.000060
0.0561 0.00050
0.635
15 * 0 36 0 0.41436 0.000069
0.0519 0.00034
0.780
16 * 0 39 0 0.41434 0.000025
0.000278
0.00135
1.005
17 0 41 0 0.41432 0.000017
0.0146 0.00064
0.905
18 * 0 43 0 0.41430 0.000023
0.0552 0.00025
0.687
19 0 45 0 0.41427 0.000025
0.0556 0.00021
0.770
20 0 48 0 0.41425 0.000020
0.0234 0.00023
0.927
21 * 0 50 0 0.41424 8.029E-6
0.1358 0.00010
0.293
22 0 52 0 0.41422 0.000027
0.1195 0.00008
0.722
23 0 54 0 0.41420 0.000019
0.1165 0.00007
0.722
24 0 56 0 0.41418 0.00001 0.1278 0.0000 0.686
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
4 6
25 * 0 58 0 0.41417 0.000013
0.1387 0.00005
0.685
26 * 0 61 0 0.41416 8.877E-6
0.00644 0.00014
1.002
27 0 63 0 0.41416 5.601E-6
0.0620 0.00007
0.839
28 * 0 65 0 0.41415 9.789E-7
0.2714 0.00003
0.0744
29 0 67 0 0.41414 0.000016
0.0499 0.00006
0.966
30 0 69 0 0.41414 9.162E-7
0.2993 0.00003
0.0877
31 * 0 71 0 0.41412 0.000013
0.0573 0.00005
0.964
32 * 0 74 0 0.41412 3.038E-6
0.0372 0.00007
0.963
33 * 0 76 0 0.41412 2.806E-6
0.1791 0.00003
0.527
34 * 0 78 0 0.41411 5.169E-6
0.1790 0.00003
0.718
35 0 80 0 0.41411 4.299E-6
0.1955 0.00003
0.673
36 * 0 82 0 0.41410 5.166E-6
0.1412 0.00003
0.840
37 0 85 0 0.41410 2.076E-6
0.0167 0.00008
0.998
38 * 0 87 0 0.41410 2.158E-6
0.0570 0.00004
0.932
39 0 90 0 0.41410 1.931E- 0.0713 0.0000 0.902
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
6 4
40 0 92 0 0.41409 2.778E-6
0.1900 0.00002
0.696
41 0 94 0 0.41409 3.632E-6
0.1857 0.00002
0.780
42 * 0 97 0 0.41409 2.573E-6
0.0440 0.00004
0.976
43 * 0 99 0 0.41409 8.566E-8
0.3885 0.00002
0.0256
44 0 101 0 0.41408 4.56E-6 0.0854 0.00003
0.961
45 0 103 0 0.41408 2.212E-6
0.2255 0.00002
0.700
46 * 0 105 0 0.41408 2.821E-6
0.2258 0.00001
0.763
47 0 108 0 0.41408 1.342E-6
0.0140 0.00007
1.000
48 * 0 110 0 0.41408 1.105E-6
0.0449 0.00003
0.965
49 0 112 0 0.41408 7.735E-7
0.3210 0.00002
0.365
50 0 114 0 0.41407 2.952E-6
0.1532 0.00002
0.903
Optimization Results
Iterations 50 Function Calls 117
Jacobian Calls 52 Active Constraints 0
Objective Function 0.4140728645 Max Abs Gradient Element 0.1532004038
Lambda 0.0000161945 Actual Over Pred Change 0.9025970153
Optimization Results
Radius 0.6957418564
LEVMAR needs more than 50 iterations or 500 function calls.
LEVMAR Optimization cannot be completed.
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Fit Summary
Modeling Info N Observations 228
N Variables 15
N Moments 120
N Parameters 32
N Active Constraints 0
Baseline Model Function Value 0.4801
Baseline Model Chi-Square 108.9878
Baseline Model Chi-Square DF 105
Pr > Baseline Model Chi-Square 0.3754
Absolute Index Fit Function 0.4141
Chi-Square 93.9945
Chi-Square DF 88
Pr > Chi-Square 0.3114
Z-Test of Wilson & Hilferty 0.4922
Hoelter Critical N 268
Root Mean Square Residual (RMSR) 0.1759
Standardized RMSR (SRMSR) 0.0586
Goodness of Fit Index (GFI) 0.9481
Parsimony Index Adjusted GFI (AGFI) 0.9292
Parsimonious GFI 0.7946
RMSEA Estimate 0.0173
RMSEA Lower 90% Confidence Limit
0.0000
RMSEA Upper 90% Confidence Limit 0.0410
Probability of Close Fit 0.9937
ECVI Estimate 0.7174
Fit Summary
ECVI Lower 90% Confidence Limit 0.7204
ECVI Upper 90% Confidence Limit 0.8406
Akaike Information Criterion 157.9945
Bozdogan CAIC 299.7336
Schwarz Bayesian Criterion 267.7336
McDonald Centrality 0.9869
Incremental Index Bentler Comparative Fit Index 0.0000
Bentler-Bonett NFI 0.1376
Bentler-Bonett Non-normed Index -0.7936
Bollen Normed Index Rho1 -0.0290
Bollen Non-normed Index Delta2 0.7144
James et al. Parsimonious NFI 0.1153
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
PATH List
Path Parameter
Estimate
attitude ---> X1 lam1 1.76418
attitude ---> X2 lam2 -0.18085
attitude ---> X3 lam3 -0.0005021
subnorms
---> X4 lam1 1.76418
subnorms
---> X5 lam2 -0.18085
subnorms
---> X6 lam3 -0.0005021
intention ---> X7 lam1 1.76418
intention ---> X8 lam2 -0.18085
intention ---> X9 lam3 -0.0005021
pastbeh ---> X10 lam1 1.76418
pastbeh ---> X11 lam2 -0.18085
pastbeh ---> X12 lam3 -0.0005021
beh ---> X13 lam1 1.76418
beh ---> X14 lam2 -0.18085
beh ---> X15 lam3 -0.0005021
attitude ---> intention _Parm1 4.38971
attitude ---> beh _Parm2 -0.02373
pastbeh ---> intention _Parm3 0.63146
pastbeh ---> beh _Parm4 0.03438
subnorms
---> intention _Parm5 14.59712
intention ---> beh _Parm6 0.00222
Variance Parameters
VarianceType
Variable Parameter Estimate
Exogenous attitude _Add01 0.48464
subnorms
_Add02 0.05162
pastbeh _Add03 0.83022
Error X1 _Add04 1.30799
X2 _Add05 2.80716
X3 _Add06 3.04478
X4 _Add07 2.87768
X5 _Add08 3.23934
X6 _Add09 2.84599
X7 _Add10 1.72009
X8 _Add11 3.05485
X9 _Add12 2.79922
X10 _Add13 0.20041
X11 _Add14 2.97714
X12 _Add15 2.87918
X13 _Add16 5.37074
X14 _Add17 3.30704
X15 _Add18 3.00446
intention _Add19 -1.06529
beh _Add20 -0.79000
Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate
subnorms
attitude _Add21 -0.14446
pastbeh attitude _Add22 -0.07489
pastbeh subnorms _Add23 -0.01121
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X1 1.30799 2.81637 0.5356
X10 0.20041 2.78434 0.9280
X11 2.97714 3.00429 0.00904
X12 2.87918 2.87918 7.27E-8
X13 5.37074 2.91631 -0.8416
X14 3.30704 3.28125 -0.00786
X15 3.00446 3.00446 -6.62E-8
X2 2.80716 2.82301 0.00562
X3 3.04478 3.04478 4.013E-8
X4 2.87768 3.03834 0.0529
X5 3.23934 3.24103 0.000521
X6 2.84599 2.84599 0
X7 1.72009 3.17673 0.4585
X8 3.05485 3.07015 0.00499
X9 2.79922 2.79922 4.216E-8
beh -0.79000 -0.78861 .
intention -1.06529 0.46802 .
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Standardized Results for PATH List
Path Parameter
Estimate
attitude ---> X1 lam1 0.73183
attitude ---> X2 lam2 -0.07493
attitude ---> X3 lam3 -0.0002003
subnorms
---> X4 lam1 0.22995
subnorms
---> X5 lam2 -0.02282
subnorms
---> X6 lam3 -0.0000676
intention ---> X7 lam1 0.67715
intention ---> X8 lam2 -0.07061
intention ---> X9 lam3 -0.0002053
pastbeh ---> X10 lam1 0.96334
pastbeh ---> X11 lam2 -0.09507
pastbeh ---> X12 lam3 -0.0002696
beh ---> X13 lam1 .
beh ---> X14 lam2 .
beh ---> X15 lam3 .
attitude ---> intention _Parm1 4.46699
attitude ---> beh _Parm2 .
pastbeh ---> intention _Parm3 0.84103
pastbeh ---> beh _Parm4 .
subnorms
---> intention _Parm5 4.84771
intention ---> beh _Parm6 .
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate
Exogenous attitude _Add01 1.00000
subnorms _Add02 1.00000
pastbeh _Add03 1.00000
Error X1 _Add04 0.46442
X2 _Add05 0.99438
X3 _Add06 1.00000
X4 _Add07 0.94712
X5 _Add08 0.99948
X6 _Add09 1.00000
X7 _Add10 0.54147
X8 _Add11 0.99501
X9 _Add12 1.00000
X10 _Add13 0.07198
X11 _Add14 0.99096
X12 _Add15 1.00000
X13 _Add16 1.84162
X14 _Add17 1.00786
X15 _Add18 1.00000
intention _Add19 -2.27617
beh _Add20 .
Standardized Results for Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate
subnorms attitude _Add21 -0.91335
pastbeh attitude _Add22 -0.11807
pastbeh subnorms _Add23 -0.05416
Simulation #8
Test: Model 2 (Intention Partially Mediates Attitude Effects on Behavior)
Data Set: Random
SAS SYNTAX:
proc calis data=SASUSER.SEM_RANDOMDATA; path attitude ---> X1 X2 X3 = lam1 lam2 lam3, subnorms ---> X4 X5 X6 = lam1 lam2 lam3, intention ---> X7 X8 X9 = lam1 lam2 lam3, beh ---> X13 X14 X15 = lam1 lam2 lam3, attitude ---> intention beh, subnorms ---> intention, intention ---> beh;run;
SAS LOG:
1 proc calis data=SASUSER.SEM_RANDOMDATA;2 path3 attitude ---> X1 X2 X3 = lam1 lam2 lam3,4 subnorms ---> X4 X5 X6 = lam1 lam2 lam3,5 intention ---> X7 X8 X9 = lam1 lam2 lam3,6 beh ---> X13 X14 X15 = lam1 lam2 lam3,7 attitude ---> intention beh,8 subnorms ---> intention,9 intention ---> beh;10 run;
NOTE: Convergence criterion (GCONV=1E-8) satisfied.NOTE: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.WARNING: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.WARNING: The estimated error variance for variable beh is negative.WARNING: The predicted variance of latent variable beh is negative.WARNING: The predicted variance of latent variable subnorms is negative.WARNING: Number of zero or negative variances encountered when computing standardized results: 2. Standardization with these values was not done.NOTE: PROCEDURE CALIS used (Total process time): real time 1.29 seconds cpu time 0.82 seconds
SAS OUTPUT:
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Model and Initial Values
Modeling Information
Data Set SASUSER.SEM_RANDOMDATA
N Records Read
228
Modeling Information
N Records Used 228
N Obs 228
Model Type PATH
Analysis Covariances
Variables in the Model
Endogenous
Manifest X1 X13 X14 X15 X2 X3 X4 X5 X6 X7 X8 X9
Latent beh intention
Exogenous Manifest
Latent attitude subnorms
Number of Endogenous Variables = 14Number of Exogenous Variables = 2
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Descriptive Statistics
Simple Statistics
Variable Mean Std Dev
X1 X1 3.96942 1.67800
X2 X2 3.92882 1.68062
X3 X3 4.01325 1.74491
X4 X4 3.90928 1.74093
X5 X5 3.92321 1.80255
X6 X6 3.96071 1.68701
X7 X7 4.10400 1.78364
X8 X8 4.11832 1.75092
X9 X9 3.95523 1.67310
X13 X13
4.02703 1.70790
X14 X1 4.16736 1.81132
Simple Statistics
Variable Mean Std Dev
4
X15 X15
4.04412 1.73333
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Initial Estimation Methods
1 Instrumental Variables Method
2 McDonald Method
3 Two-Stage Least Squares
Optimization StartParameter Estimates
N Parameter Estimate Gradient
1 lam1 1.00000 -0.0003808
2 lam2 0.30562 0.00739
3 lam3 0.21152 0.01181
4 _Parm1 0.00100 0.00146
5 _Parm2 0.01000 0.00189
6 _Parm3 0.00100 -0.00824
7 _Parm4 0.01000 0.00138
8 _Add01 0.10000 0.00628
9 _Add02 0.27996 -0.0005856
10 _Add03 2.71570 -0.0001943
11 _Add04 2.81514 -0.0005373
12 _Add05 3.04025 0.0002559
13 _Add06 2.75089 0.0005664
14 _Add07 3.22303 -0.0002895
15 _Add08 2.83349 -0.0001012
16 _Add09 3.08138 -0.0005347
17 _Add10 3.05637 -0.0003439
18 _Add11 2.79478 -0.0002768
19 _Add12 2.74354 0.0003455
Optimization StartParameter Estimates
N Parameter Estimate Gradient
20 _Add13 3.26469 0.0003778
21 _Add14 2.99668 -0.0007404
22 _Add15 0.10000 0.01715
23 _Add16 0.17342 0.0000520
24 _Add17 0 0.07465
Value of Objective Function = 0.277001818
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Levenberg-Marquardt Optimization
Scaling Update of More (1978)
Parameter Estimates 24
Functions (Observations) 78
Optimization Start
Active Constraints 0 Objective Function
0.277001818
Max Abs Gradient Element 0.0746523857 Radius 1
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
1 0 5 0 0.25967 0.0173 0.0579 0.883 1.283
2 * 0 7 0 0.25226 0.00741 0.0467 0.194 0.435
3 * 0 9 0 0.24461 0.00765 0.00973 0.116 0.809
4 * 0 11 0 0.24129 0.00332 0.0100 0.0134 0.995
5 * 0 13 0 0.23544 0.00585 0.0238 0.00515
1.359
6 * 0 16 0 0.22401 0.0114 0.0207 0.00723
1.567
7 * 0 18 0 0.22238 0.00163 0.0809 0.00069
0.270
8 * 0 21 0 0.21575 0.00662 0.0137 0.0033 0.834
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
7
9 * 0 24 0 0.21396 0.00180 0.0131 0.00245
0.865
10 * 0 26 0 0.21368 0.000272
0.0154 111E-16
0.460
11 * 0 28 0 0.21329 0.000391
0.00431 111E-16
0.891
12 * 0 30 0 0.21326 0.000029
0.00219 111E-16
0.449
13 * 0 32 0 0.21325 9.501E-6
0.00248 111E-16
0.258
14 * 0 34 0 0.21325 4.747E-6
0.00182 111E-16
0.190
15 * 0 36 0 0.21325 2.882E-6
0.00166 111E-16
0.166
16 * 0 38 0 0.21324 1.968E-6
0.00134 111E-16
0.159
17 * 0 40 0 0.21324 1.368E-6
0.00116 111E-16
0.155
18 * 0 42 0 0.21324 9.799E-7
0.000970
111E-16
0.155
19 * 0 44 0 0.21324 6.949E-7
0.000827
111E-16
0.154
20 * 0 46 0 0.21324 4.996E-7
0.000697
111E-16
0.154
21 * 0 48 0 0.21324 3.557E-7
0.000591
111E-16
0.154
22 * 0 50 0 0.21324 2.556E-7
0.000499
111E-16
0.154
23 * 0 52 0 0.21324 1.823E- 0.00042 111E- 0.154
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
7 3 16
24 * 0 54 0 0.21324 1.308E-7
0.000358
111E-16
0.154
25 * 0 56 0 0.21324 9.342E-8
0.000303
111E-16
0.154
26 * 0 58 0 0.21324 6.702E-8
0.000256
111E-16
0.154
27 * 0 60 0 0.21324 4.789E-8
0.000217
111E-16
0.154
28 * 0 62 0 0.21324 3.433E-8
0.000183
111E-16
0.154
29 * 0 64 0 0.21324 2.454E-8
0.000155
111E-16
0.154
30 * 0 66 0 0.21324 1.759E-8
0.000131
111E-16
0.154
31 * 0 68 0 0.21324 1.258E-8
0.000111
111E-16
0.154
32 * 0 70 0 0.21324 9.012E-9
0.000094
111E-16
0.154
33 * 0 72 0 0.21324 6.447E-9
0.000079
111E-16
0.154
34 * 0 74 0 0.21324 4.619E-9
0.000067
111E-16
0.154
35 * 0 76 0 0.21324 3.304E-9
0.000057
111E-16
0.154
36 * 0 78 0 0.21324 2.366E-9
0.000048
111E-16
0.154
37 * 0 80 0 0.21324 1.693E-9
0.000041
111E-16
0.154
38 * 0 82 0 0.21324 1.212E- 0.00003 111E- 0.154
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
9 4 16
39 * 0 84 0 0.21324 8.68E-10
0.000029
111E-16
0.154
40 * 0 86 0 0.21324 6.21E-10
0.000025
111E-16
0.154
41 * 0 88 0 0.21324 4.45E-10
0.000021
111E-16
0.154
42 * 0 90 0 0.21324 3.18E-10
0.000018
111E-16
0.154
43 * 0 92 0 0.21324 2.28E-10
0.000015
111E-16
0.154
44 * 0 94 0 0.21324 1.63E-10
0.000013
111E-16
0.154
Optimization Results
Iterations 44 Function Calls 97
Jacobian Calls 46 Active Constraints 0
Objective Function 0.2132392807 Max Abs Gradient Element 0.0000126347
Lambda 1.110223E-14 Actual Over Pred Change 0.1539224805
Radius 1.4102135198
Convergence criterion (GCONV=1E-8) satisfied.
Note: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.
Warning: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.
Note: Covariance matrix for the estimates is not full rank.
Note: The variance of some parameter estimates is zero or some parameter estimates are linearly related to other parameter estimates as shown in the following equations:
_Add02
= 1.368962
- 2.945907
* lam1
+ 0.909780
* lam2
+ 0.540043
* lam3
+ 0.620568
* _Add01
+ 1.677193
* _Add15
- 2.224321
* _Add16
- 1.469620
* _Add17
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Fit Summary
Modeling Info N Observations 228
N Variables 12
N Moments 78
N Parameters 24
N Active Constraints 0
Baseline Model Function Value 0.2767
Baseline Model Chi-Square 62.8118
Baseline Model Chi-Square DF 66
Pr > Baseline Model Chi-Square 0.5885
Absolute Index Fit Function 0.2132
Chi-Square 48.4053
Chi-Square DF 54
Pr > Chi-Square 0.6891
Z-Test of Wilson & Hilferty -0.4939
Hoelter Critical N 339
Root Mean Square Residual (RMSR) 0.1598
Standardized RMSR (SRMSR) 0.0527
Goodness of Fit Index (GFI) 0.9656
Parsimony Index Adjusted GFI (AGFI) 0.9503
Parsimonious GFI 0.7900
RMSEA Estimate 0.0000
RMSEA Lower 90% Confidence Limit
0.0000
RMSEA Upper 90% Confidence Limit 0.0339
Probability of Close Fit 0.9971
ECVI Estimate 0.4375
Fit Summary
ECVI Lower 90% Confidence Limit 0.4766
ECVI Upper 90% Confidence Limit 0.5251
Akaike Information Criterion 96.4053
Bozdogan CAIC 202.7096
Schwarz Bayesian Criterion 178.7096
McDonald Centrality 1.0123
Incremental Index Bentler Comparative Fit Index .
Bentler-Bonett NFI 0.2294
Bentler-Bonett Non-normed Index -1.1448
Bollen Normed Index Rho1 0.0581
Bollen Non-normed Index Delta2 1.6349
James et al. Parsimonious NFI 0.1877
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
PATH List
Path Parameter Estimate StandardError
t Value
attitude ---> X1 lam1 1.21122 0.33128 3.65620
attitude ---> X2 lam2 -0.37406 0.19371 -1.93104
attitude ---> X3 lam3 -0.22204 0.16334 -1.35934
subnorms
---> X4 lam1 1.21122 0.33128 3.65620
subnorms
---> X5 lam2 -0.37406 0.19371 -1.93104
subnorms
---> X6 lam3 -0.22204 0.16334 -1.35934
intention ---> X7 lam1 1.21122 0.33128 3.65620
intention ---> X8 lam2 -0.37406 0.19371 -1.93104
intention ---> X9 lam3 -0.22204 0.16334 -1.35934
beh ---> X13 lam1 1.21122 0.33128 3.65620
beh ---> X14 lam2 -0.37406 0.19371 -1.93104
beh ---> X15 lam3 -0.22204 0.16334 -1.35934
attitude ---> intention _Parm1 -0.66977 0.90285 -0.74183
attitude ---> beh _Parm2 0.14388 0.48911 0.29418
subnorms
---> intention _Parm3 -0.07322 0.46707 -0.15677
intention ---> beh _Parm4 0.05295 0.38381 0.13797
Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 0.12757 0.31536 0.40453
subnorms _Add02 -0.54084 0.34353 -1.57436
Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Error X1 _Add03 2.60892 0.53544 4.87246
X2 _Add04 2.80723 0.26777 10.48373
X3 _Add05 3.06080 0.28804 10.62645
X4 _Add06 3.86665 0.90626 4.26657
X5 _Add07 3.32040 0.32280 10.28615
X6 _Add08 2.84533 0.26991 10.54195
X7 _Add09 2.62145 0.70070 3.74116
X8 _Add10 3.03617 0.29324 10.35405
X9 _Add11 2.77969 0.26322 10.56042
X13 _Add12 3.59598 0.79134 4.54418
X14 _Add13 3.32396 0.31931 10.40993
X15 _Add14 3.03531 0.28589 10.61701
intention _Add15 0.34479 0.40812 0.84484
beh _Add16 -0.45727 0.33890 -1.34929
Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude
_Add17 -0.30212 0.16842 -1.79384
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X1 2.60892 2.79608 0.0669
X13 3.59598 2.92912 -0.2277
X14 3.32396 3.26036 -0.0195
X15 3.03531 3.01290 -0.00744
X2 2.80723 2.82508 0.00632
X3 3.06080 3.06709 0.00205
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X4 3.86665 3.07320 -0.2582
X5 3.32040 3.24473 -0.0233
X6 2.84533 2.81867 -0.00946
X7 2.62145 3.16351 0.1713
X8 3.03617 3.08787 0.0167
X9 2.77969 2.79791 0.00651
beh -0.45727 -0.45456 .
intention 0.34479 0.36949 0.0668
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Standardized Results for PATH List
Path Parameter Estimate StandardError
t Value
attitude ---> X1 lam1 0.25872 0.33272 0.77760
attitude ---> X2 lam2 -0.07949 0.10900 -0.72926
attitude ---> X3 lam3 -0.04528 0.06675 -0.67839
subnorms
---> X4 lam1 .
subnorms
---> X5 lam2 .
subnorms
---> X6 lam3 .
intention ---> X7 lam1 0.41394 0.25209 1.64205
intention ---> X8 lam2 -0.12939 0.08729 -1.48232
intention ---> X9 lam3 -0.08069 0.06929 -1.16460
beh ---> X13 lam1 .
beh ---> X14 lam2 .
beh ---> X15 lam3 .
attitude ---> intention _Parm1 -0.39355 0.37836 -1.04015
attitude ---> beh _Parm2 .
subnorms
---> intention _Parm3 .
intention ---> beh _Parm4 .
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate
StandardError
t Value
Exogenous
attitude _Add01 1.00000
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate
StandardError
t Value
subnorms _Add02 1.00000
Error X1 _Add03 0.93306 0.17216 5.41970
X2 _Add04 0.99368 0.01733 57.34352
X3 _Add05 0.99795 0.00605 165.06313
X4 _Add06 1.25818 0.26537 4.74130
X5 _Add07 1.02332 0.02376 43.06236
X6 _Add08 1.00946 0.01366 73.88386
X7 _Add09 0.82865 0.20870 3.97054
X8 _Add10 0.98326 0.02259 43.52659
X9 _Add11 0.99349 0.01118 88.85385
X13 _Add12 1.22767 0.24455 5.02002
X14 _Add13 1.01951 0.02254 45.22734
X15 _Add14 1.00744 0.01161 86.80159
intention _Add15 0.93316 0.58707 1.58952
beh _Add16 .
Standardized Results for Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude _Add17 .
SIMULATION #9
Tested: Model 1 (Theory of Reasoned Action)
Data Set: Random
SAS SYNTAX:
proc calis data=SASUSER.SEM_RANDOMDATA;pathattitude ---> X1 X2 X3 = lam1 lam2 lam3, subnorms ---> X4 X5 X6 = lam1 lam2 lam3, intention ---> X7 X8 X9 = lam1 lam2 lam3, beh ---> X13 X14 X15 = lam1 lam2 lam3, attitude ---> intention, subnorms ---> intention, intention ---> beh;run;
SAS LOG:
1 proc calis data=SASUSER.SEM_RANDOMDATA;2 path3 attitude ---> X1 X2 X3 = lam1 lam2 lam3,4 subnorms ---> X4 X5 X6 = lam1 lam2 lam3,5 intention ---> X7 X8 X9 = lam1 lam2 lam3,6 beh ---> X13 X14 X15 = lam1 lam2 lam3,7 attitude ---> intention,8 subnorms ---> intention,9 intention ---> beh;10 run;
NOTE: Convergence criterion (GCONV=1E-8) satisfied.NOTE: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.WARNING: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.WARNING: The estimated error variance for variable beh is negative.WARNING: The predicted variance of latent variable beh is negative.WARNING: The predicted variance of latent variable subnorms is negative.WARNING: Number of zero or negative variances encountered when computing standardized results: 2. Standardization with these values was not done.NOTE: PROCEDURE CALIS used (Total process time): real time 1.19 seconds cpu time 0.79 seconds
SAS OUTPUT:
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Model and Initial Values
Modeling Information
Data Set SASUSER.SEM_RANDOMDATA
N Records Read
228
Modeling Information
N Records Used 228
N Obs 228
Model Type PATH
Analysis Covariances
Variables in the Model
Endogenous
Manifest X1 X13 X14 X15 X2 X3 X4 X5 X6 X7 X8 X9
Latent beh intention
Exogenous Manifest
Latent attitude subnorms
Number of Endogenous Variables = 14Number of Exogenous Variables = 2
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Descriptive Statistics
Simple Statistics
Variable Mean Std Dev
X1 X1 3.96942 1.67800
X2 X2 3.92882 1.68062
X3 X3 4.01325 1.74491
X4 X4 3.90928 1.74093
X5 X5 3.92321 1.80255
X6 X6 3.96071 1.68701
X7 X7 4.10400 1.78364
X8 X8 4.11832 1.75092
X9 X9 3.95523 1.67310
X13 X13
4.02703 1.70790
X14 X14
4.16736 1.81132
X15 X15
4.04412 1.73333
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Initial Estimation Methods
1 Instrumental Variables Method
2 McDonald Method
3 Two-Stage Least Squares
Optimization StartParameter Estimates
N Parameter Estimate Gradient
1 lam1 1.00000 -0.0004157
2 lam2 0.30562 0.00740
3 lam3 0.21152 0.01179
4 _Parm1 0.00100 0.00144
5 _Parm2 0.00100 -0.00824
6 _Parm3 0.01000 0.00138
7 _Add01 0.10000 0.00610
8 _Add02 0.27996 -0.0005856
9 _Add03 2.71570 -0.0001919
10 _Add04 2.81514 -0.0005327
11 _Add05 3.04025 0.0002554
12 _Add06 2.75089 0.0005664
13 _Add07 3.22303 -0.0002895
14 _Add08 2.83349 -0.0001012
15 _Add09 3.08138 -0.0005347
16 _Add10 3.05637 -0.0003439
17 _Add11 2.79478 -0.0002768
18 _Add12 2.74354 0.0003539
19 _Add13 3.26469 0.0003723
Optimization StartParameter Estimates
N Parameter Estimate Gradient
20 _Add14 2.99668 -0.0007385
21 _Add15 0.10000 0.01715
22 _Add16 0.17341 0.0000562
23 _Add17 0 0.07448
Value of Objective Function = 0.2769830854
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Optimization
Levenberg-Marquardt Optimization
Scaling Update of More (1978)
Parameter Estimates 23
Functions (Observations) 78
Optimization Start
Active Constraints 0 Objective Function 0.2769830854
Max Abs Gradient Element 0.0744788597 Radius 1
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
1 * 0 5 0 0.25876 0.0182 0.0657 0.855 1.384
2 * 0 7 0 0.24714 0.0116 0.0300 0.141 1.209
3 * 0 9 0 0.24144 0.00570 0.0224 0.0207 0.710
4 * 0 11 0 0.23799 0.00345 0.0207 0.0222 0.571
5 * 0 13 0 0.23458 0.00341 0.0220 0.0127 0.790
6 * 0 16 0 0.23256 0.00202 0.0200 0.0188 0.570
7 * 0 18 0 0.23087 0.00169 0.0299 0.00799
0.772
8 * 0 20 0 0.22858 0.00229 0.0428 0.00345
0.661
9 * 0 22 0 0.22269 0.00589 0.0415 0.00123
1.271
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
10 * 0 25 0 0.21811 0.00458 0.0240 0.00766
1.193
11 * 0 27 0 0.21696 0.00114 0.0747 111E-16
0.503
12 * 0 29 0 0.21437 0.00260 0.0173 0.00015
0.991
13 * 0 31 0 0.21382 0.000544
0.0104 111E-16
0.917
14 * 0 33 0 0.21364 0.000181
0.00210 111E-16
1.016
15 * 0 35 0 0.21362 0.000017
0.000593
111E-16
0.924
16 * 0 37 0 0.21362 3.702E-6
0.000748
111E-16
0.732
17 * 0 39 0 0.21362 9.365E-7
0.000378
111E-16
0.502
18 * 0 41 0 0.21362 3.058E-7
0.000381
111E-16
0.335
19 * 0 43 0 0.21362 1.295E-7
0.000263
111E-16
0.248
20 * 0 45 0 0.21362 6.904E-8
0.000227
111E-16
0.214
21 * 0 47 0 0.21362 4.135E-8
0.000173
111E-16
0.201
22 * 0 49 0 0.21362 2.605E-8
0.000142
111E-16
0.197
23 * 0 51 0 0.21362 1.674E-8
0.000113
111E-16
0.195
24 * 0 53 0 0.21362 1.082E-8
0.000092
111E-16
0.195
Iteration
Restarts
Function
Calls
ActiveConstrain
ts
Objective
Function
Objective
Function
Change
Max Abs
Gradient
Element
Lambda
RatioBetween
Actualand
Predicted
Change
25 * 0 55 0 0.21362 7.013E-9
0.000073
111E-16
0.195
26 * 0 57 0 0.21362 4.548E-9
0.000060
111E-16
0.194
27 * 0 59 0 0.21362 2.952E-9
0.000048
111E-16
0.194
28 * 0 61 0 0.21362 1.915E-9
0.000039
111E-16
0.194
29 * 0 63 0 0.21362 1.243E-9
0.000031
111E-16
0.194
30 * 0 65 0 0.21362 8.07E-10
0.000025
111E-16
0.194
31 * 0 67 0 0.21362 5.23E-10
0.000020
111E-16
0.194
32 * 0 69 0 0.21362 3.4E-10 0.000016
111E-16
0.194
33 * 0 71 0 0.21362 2.2E-10 0.000013
111E-16
0.194
34 * 0 73 0 0.21362 1.43E-10
0.000011
111E-16
0.194
Optimization Results
Iterations 34 Function Calls 76
Jacobian Calls 36 Active Constraints 0
Objective Function 0.2136193968 Max Abs Gradient Element 0.000010588
Lambda 1.110223E-14 Actual Over Pred Change 0.1944068834
Radius 70.12934888
Convergence criterion (GCONV=1E-8) satisfied.
Note: The Moore-Penrose inverse is used in computing the covariance matrix for parameter estimates.
Warning: Standard errors and t values might not be accurate with the use of the Moore-Penrose inverse.
Note: Covariance matrix for the estimates is not full rank.
Note: The variance of some parameter estimates is zero or some parameter estimates are linearly related to other parameter estimates as shown in the following equations:
_Add02
= 0.979535
- 3.012506
* lam1
+ 0.907608
* lam2
+ 0.561023
* lam3
+ 0.597522
* _Add01
+ 1.836001
* _Add15
- 2.445607
* _Add16
- 1.641415
* _Add17
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Fit Summary
Modeling Info N Observations 228
N Variables 12
N Moments 78
N Parameters 23
N Active Constraints 0
Baseline Model Function Value 0.2767
Baseline Model Chi-Square 62.8118
Baseline Model Chi-Square DF 66
Pr > Baseline Model Chi-Square 0.5885
Absolute Index Fit Function 0.2136
Chi-Square 48.4916
Chi-Square DF 55
Pr > Chi-Square 0.7199
Z-Test of Wilson & Hilferty -0.5832
Hoelter Critical N 344
Root Mean Square Residual (RMSR) 0.1600
Standardized RMSR (SRMSR) 0.0528
Goodness of Fit Index (GFI) 0.9656
Parsimony Index Adjusted GFI (AGFI) 0.9511
Parsimonious GFI 0.8046
RMSEA Estimate 0.0000
RMSEA Lower 90% Confidence Limit
0.0000
RMSEA Upper 90% Confidence Limit 0.0323
Probability of Close Fit 0.9979
ECVI Estimate 0.4286
Fit Summary
ECVI Lower 90% Confidence Limit 0.4720
ECVI Upper 90% Confidence Limit 0.5155
Akaike Information Criterion 94.4916
Bozdogan CAIC 196.3666
Schwarz Bayesian Criterion 173.3666
McDonald Centrality 1.0144
Incremental Index Bentler Comparative Fit Index .
Bentler-Bonett NFI 0.2280
Bentler-Bonett Non-normed Index -1.4497
Bollen Normed Index Rho1 0.0736
Bollen Non-normed Index Delta2 1.8332
James et al. Parsimonious NFI 0.1900
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
PATH List
Path Parameter Estimate StandardError
t Value
attitude ---> X1 lam1 1.17744 0.34358 3.42696
attitude ---> X2 lam2 -0.35474 0.18472 -1.92041
attitude ---> X3 lam3 -0.21928 0.15782 -1.38937
subnorms
---> X4 lam1 1.17744 0.34358 3.42696
subnorms
---> X5 lam2 -0.35474 0.18472 -1.92041
subnorms
---> X6 lam3 -0.21928 0.15782 -1.38937
intention ---> X7 lam1 1.17744 0.34358 3.42696
intention ---> X8 lam2 -0.35474 0.18472 -1.92041
intention ---> X9 lam3 -0.21928 0.15782 -1.38937
beh ---> X13 lam1 1.17744 0.34358 3.42696
beh ---> X14 lam2 -0.35474 0.18472 -1.92041
beh ---> X15 lam3 -0.21928 0.15782 -1.38937
attitude ---> intention _Parm1 -0.71581 1.08562 -0.65935
subnorms
---> intention _Parm2 -0.04826 0.55753 -0.08656
intention ---> beh _Parm3 -0.02212 0.28329 -0.07808
Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
Exogenous attitude _Add01 0.11677 0.36775 0.31753
subnorms _Add02 -0.58860 0.35766 -1.64568
Error X1 _Add03 2.63311 0.57845 4.55203
Variance Parameters
VarianceType
Variable Parameter Estimate StandardError
t Value
X2 _Add04 2.81145 0.26832 10.47787
X3 _Add05 3.06136 0.28813 10.62476
X4 _Add06 3.89180 0.92787 4.19433
X5 _Add07 3.31648 0.32214 10.29522
X6 _Add08 2.84726 0.27038 10.53049
X7 _Add09 2.61593 0.70941 3.68745
X8 _Add10 3.03813 0.29300 10.36891
X9 _Add11 2.77880 0.26325 10.55585
X13 _Add12 3.59033 0.79722 4.50355
X14 _Add13 3.32161 0.31849 10.42936
X15 _Add14 3.03578 0.28598 10.61536
intention _Add15 0.35880 0.44912 0.79890
beh _Add16 -0.47793 0.36058 -1.32546
Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude
_Add17 -0.32077 0.18793 -1.70692
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X1 2.63311 2.79500 0.0579
X13 3.59033 2.92800 -0.2262
X14 3.32161 3.26149 -0.0184
X15 3.03578 3.01281 -0.00762
X2 2.81145 2.82614 0.00520
X3 3.06136 3.06698 0.00183
X4 3.89180 3.07577 -0.2653
Squared Multiple Correlations
Variable Error Variance Total Variance R-Square
X5 3.31648 3.24241 -0.0228
X6 2.84726 2.81896 -0.0100
X7 2.61593 3.16369 0.1731
X8 3.03813 3.08785 0.0161
X9 2.77880 2.79779 0.00679
beh -0.47793 -0.47774 .
intention 0.35880 0.39510 0.0919
The SAS System
The CALIS ProcedureCovariance Structure Analysis: Maximum Likelihood Estimation
Standardized Results for PATH List
Path Parameter Estimate StandardError
t Value
attitude ---> X1 lam1 0.24067 0.39178 0.61428
attitude ---> X2 lam2 -0.07211 0.12245 -0.58888
attitude ---> X3 lam3 -0.04279 0.07595 -0.56337
subnorms
---> X4 lam1 .
subnorms
---> X5 lam2 .
subnorms
---> X6 lam3 .
intention ---> X7 lam1 0.41610 0.25438 1.63574
intention ---> X8 lam2 -0.12689 0.08653 -1.46642
intention ---> X9 lam3 -0.08240 0.06996 -1.17786
beh ---> X13 lam1 .
beh ---> X14 lam2 .
beh ---> X15 lam3 .
attitude ---> intention _Parm1 -0.38914 0.38550 -1.00947
subnorms
---> intention _Parm2 .
intention ---> beh _Parm3 .
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate
StandardError
t Value
Exogenous
attitude _Add01 1.00000
subnorms _Add02 1.00000
Standardized Results for Variance Parameters
VarianceType
Variable Parameter Estimate
StandardError
t Value
Error X1 _Add03 0.94208 0.18858 4.99566
X2 _Add04 0.99480 0.01766 56.33427
X3 _Add05 0.99817 0.00650 153.58837
X4 _Add06 1.26531 0.27234 4.64614
X5 _Add07 1.02284 0.02344 43.64346
X6 _Add08 1.01004 0.01419 71.16430
X7 _Add09 0.82686 0.21169 3.90594
X8 _Add10 0.98390 0.02196 44.80317
X9 _Add11 0.99321 0.01153 86.14484
X13 _Add12 1.22620 0.24698 4.96480
X14 _Add13 1.01843 0.02176 46.79654
X15 _Add14 1.00762 0.01179 85.46239
intention _Add15 0.90813 0.67945 1.33657
beh _Add16 .
Standardized Results for Covariances Among Exogenous Variables
Var1 Var2 Parameter Estimate StandardError
t Value
subnorms attitude _Add17 .