Fifty-three research studies on feedback timing and verbal learning underwent meta-analysis. Applied studies using actual classroom quizzes and real learning materials found immediate rather than delayed feedback to be more effective; experimental studies of acquisition of test content indicate the opposite. Laboratory studies of list learning…

An overview of meta-analysis in education is provided. Methodology is discussed and substantive findings from meta-analytic studies are reviewed for six major areas of educational research: (1) instructional systems; (2) instructional design; (3) curricular innovation; (4) teacher education and evaluation; (5) class and school organization; and…

Teachers and researchers can learn more about mastery learning by looking at the full picture instead of the small area on which R. E. Slavin focuses. Effects on precollege examinations constitute only a small part of the story; the larger literature presents many examples of its effectiveness. (SLD)