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KENDALL’S COEFFICIENT OF CONCORDANCE
Purpose, how to compute, how to interpret
KENDALL’S COEFFICIENT OF CONCORDANCE
Eto ang sitwasyon
A survey was conducted about the popularity ratings of possible senatorial candidates.
The survey was administered to 3 persons
KENDALL’S COEFFICIENT OF CONCORDANCE
Senatorial candidate Ranking from respondent 1
Ranking from respondent 2
A 5 4
B 4 5
C 3 1
D 6 3
E 1 2
F 2 6
G 7 7
Is there an agreement in the ranking of senatorial candidates from two respondents?
What is the significance of knowing if there is an agreement or not?
KENDALL’S COEFFICIENT OF CONCORDANCE
It is used to determine the degree of agreement among the raters (judges) in ranking items.
Give examples of research problems that might require Kendall’s coefficient of concordance?
KENDALL’S COEFFICIENT OF CONCORDANCE
112
22
2
nnm
dW i
m – number of raters or judges who will do the rankingn – number of items, objects, persons to be ranked
ARd ii
R(i) is the sum of ranks assigned to item i by m judges
n
RA i
10 W
KENDALL’S COEFFICIENT OF CONCORDANCE
71.04874
8012W
W Interpretation
0 No agreement
0.10 Weak agreement
0.30 Moderate agreement
0.60 Strong agreement
1.00 Perfect agreement
112
22
2
nnm
dW i
KENDALL’S COEFFICIENT OF CONCORDANCE
Prepare for an activity!
Bawal ang sensitive
Bawal ang OA