CSEM (Subset) Data:
N=25
Score out of 6 questions
Percentage
Gain
PreTest
1.95 ± 0.19
33%
PostTest (after Lab)
3.15± 0.19
53%
0.30± 0.09
PostTest (end of Year)
3.04± 0.30
51%
0.26± 0.09