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Direct linkHao Lei; Libing Chen; Ming Ming Chiu; Longyue Fang; Yuxin Ding – Educational Psychology Review, 2025
Adding illustrations to texts might improve students' science achievement. This meta-analysis of 121 effect sizes from 63 studies of 7,621 students across five decades determines both the overall effect and moderators that account for differences across studies. Our random-effects model shows a positive effect of adding illustrations to texts on…
Descriptors: Illustrations, Textbooks, Science Achievement, Effect Size
