Fig. 3From: Blended learning of radiology improves medical students’ performance, satisfaction, and engagementComparison of pre and posttest results according to groups defined by pretest scores. Difference = (posttest score)−(pretest score). The highest improvement was observed in low achievers, 11.3 points ± 22.8 (P = 10−9). Difference (D) is expressed in mean ± standard deviationBack to article page