Are in-person lectures beneficial for all students? A Study of a Large Statistics Class

2021 
Over 1000 students over four semesters were given the option of taking an introductory statistics class either by in-person attendance in lectures, augmented by online recorded lectures, or by taking the same class without the in-person lectures. The all-online students did slightly better on computer-graded exams. The causal effect of choosing only online lectures was estimated by adjusting for potential confounders using four methods. The four nearly identical point estimates remained positive but were small and not statistically significant. No statistically significant differences were found in preliminary comparisons of effects on females/males, U.S./non-U.S. citizens, freshmen/non-freshman, and lower-scoring/higher-scoring math ACT groups.
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