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Table 2.
Sample means, 95% confidence intervals by question and exposure.
QuestionMean E0 ± 95% CIMean E1 ± 95% CIMean E2 ± 95% CI
Q1 0.76 ± 0.06 (n = 188) 0.93 ± 0.04 (n = 142) 0.85 ± 0.05 (n = 122) 
Q2 0.42 ± 0.07 (n = 195) 0.74 ± 0.06 (n = 219) 0.78 ± 0.06 (n = 219) 
Q3 0.71 ± 0.06 (n = 197) 0.87 ± 0.05 (n = 220) 0.87 ± 0.05 (n = 223) 
Q4 0.68 ± 0.06 (n = 205) 0.84 ± 0.05 (n = 219) 0.90 ± 0.04 (n = 221) 
QuestionMean E0 ± 95% CIMean E1 ± 95% CIMean E2 ± 95% CI
Q1 0.76 ± 0.06 (n = 188) 0.93 ± 0.04 (n = 142) 0.85 ± 0.05 (n = 122) 
Q2 0.42 ± 0.07 (n = 195) 0.74 ± 0.06 (n = 219) 0.78 ± 0.06 (n = 219) 
Q3 0.71 ± 0.06 (n = 197) 0.87 ± 0.05 (n = 220) 0.87 ± 0.05 (n = 223) 
Q4 0.68 ± 0.06 (n = 205) 0.84 ± 0.05 (n = 219) 0.90 ± 0.04 (n = 221) 

E0 = pre-exposure, E1 = post-video, E2 = post-lecture and lab

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