Fig. 4From: Prequestions do not enhance the benefits of retrieval in a STEM classroomProportion correct on weekly quizzes as a function of question type. Postquestion denotes questions asked at the beginning and end of class, New Question denotes questions asked only at the end of class, and Quiz-Only Question denotes never-before-seen questions from the same lessons that only appeared on the weekly quizzes. Error bars represent standard errors. ***p < 0.001; NS not significantBack to article page