Upload
others
View
0
Download
0
Embed Size (px)
Citation preview
How to participate
Student Outcomes
Conclusions
The LA Alliance
0
10
20
30
40
50
60
70
'03 '04 '05 '06 '07 '08 '09 '10 '11 '12 '13 '14 ‘15 ‘16
706765
55
44
32
2015
1033332
Cumulative Program Count
Inst
itutio
nsThe Impact of Learning Assistants on Student Outcomes in Physics Courses
Learning Assistants (LAs) are undergraduate students who, through the guidance of weekly preparation sessions and a pedagogy course, facilitate discussions among groups of students in a variety of classroom settings that encourage active engagement.
Jada-Simone S. White1, Ben Van Dusen1, and Edward A. Roualdes2 1Department of Science Education
2Department of Mathematics and Statistics California State University, Chico
Email: [email protected]
Research Questions(1) How does the presence of LAs impact student
performance in physics courses, if at all? (2) How do specific implementations of LAs impact
student performance in physics courses, if at all?
LASSO Data Collection
Physics Concept Inventories• Pre & post scoresData Cleaning
• Paired Tests Only (Cohenʼs d)• Courses with > 10 Paired Tests• More than 80% answered• Cut scores < -1.0 and > 4.0
Mean Effect Sizes were 1.3 - 1.9 times higher with LA support, relative to physics courses with no LA support.
Mean Effect Sizes were significantly (1.9 times) higher in the Laboratory, relative to physics courses with no LA support.
There were no differences among the LA-use categories (Fig. 2: green bars), reinforcing that all implementations are beneficial.
Statistical power to identify best practices will increase as the number of institutions and courses participating in LASSO online assessment tool increases.
Course 1 Students Course 2 Students Course 3 Students
C.I. Institutions Courses Students
FCI 9 26 697
FMCE 9 15 1,592
BEMA 4 7 680
CSEM 4 21 754
TOTAL 17 69 3,753
Institution-Level
Course-Level
Student-Level
Institution 1
Course 1 Course 2 Course 3
Data AnalysesCourse-Level Analyses (Cohenʼs d Effect Size)•Q1: Difference in Mean Effect Size in presence vs absence of LA Support
•Levene’s Test (variance)•t-test (mean)
•Q2: Differences in Mean Effect Size among Primary LA-Supported Activity•Levene’s Test (variance) •ANOVA (mean)
•Post-hoc Multiple Comparisons•Bonferroni Correction (p