Table 5:

Grouped and Paired Pre-Post changes in self efficacy related to learning about nutrition and metabolic disease. After the module was over students completed an online retrospective pre-post survey to determine whether participation affected their self-efficacy. Aggregate data indicates a significant increase, as measured with the Wilcoxon matched pairs signed rank test. Effect size was determined with Hedge’s g (large effect size is >1).

	Retrospective Pre-mean	(SD)	Retrospective Post-mean	(SD)	Effect size (Hedges’ G)	n
Aggregate data	21.9	8.35	42.3***	7.1	3.0	77

SD, standard deviation;

^***P<0.0001 Wilcoxon matched pairs signed rank test.