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Carstensen, Claus H.1
Drechsel, Barbara1
Ehmke, Timo1
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Ehmke, Timo; Drechsel, Barbara; Carstensen, Claus H. – Studies in Educational Evaluation, 2010
The study analyzes the effects of grade repetition on science and mathematics achievement and on self-concept in mathematics using longitudinal data from a representative sample of 9th graders in Germany. Same-age comparisons were applied between three groups: (a) the retained students, (b) a matched group of promoted students, and (c) the entire…
Descriptors: Grade Repetition, Mathematics Achievement, Foreign Countries, Grade 9