This meta-analysis examines the effects ofdigital textbook (DT) use on students’ learning outcomes inSouth Korea. The South Korean government launched a DTproject in 2007; thorough examinations of the effectivenessof DTs are currently underway before effecting the full ap-plication of DTs in local schools nationwide. Using 625 ef-fect sizes (ESs) from 26 primary studies, this study found theoverall ES of DT use to be 0.34, using a random-effectsmodel. Subgroup analyses based on several moderatorvariables such as school level, subject, location, and publi-cation type were conducted to determine the effects of DTuse. The overall results with subgroup analyses suggest thatthe effects on student motivation are higher than the effectson achievement. These findings indicate that DT can be usedas an effective tool to increase student motivation. To fullyrealize the potential of DT in the classroom, we suggestderegulation of the rigid DT review and approval policy

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• Examining the Effectiveness of Digital Textbook use on Students’Learning Outcomes in South Korea: A Meta-analysis