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Rohm, Theresa; Carstensen, Claus H.; Fischer, Luise; Gnambs, Timo – Large-scale Assessments in Education, 2021
Background: After elementary school, students in Germany are separated into different school tracks (i.e., school types) with the aim of creating homogeneous student groups in secondary school. Consequently, the development of students' reading achievement diverges across school types. Findings on this achievement gap have been criticized as…
Descriptors: Achievement Gap, Reading Achievement, Test Bias, Error of Measurement
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Köhler, Carmen; Pohl, Steffi; Carstensen, Claus H. – Educational and Psychological Measurement, 2015
When competence tests are administered, subjects frequently omit items. These missing responses pose a threat to correctly estimating the proficiency level. Newer model-based approaches aim to take nonignorable missing data processes into account by incorporating a latent missing propensity into the measurement model. Two assumptions are typically…
Descriptors: Competence, Tests, Evaluation Methods, Adults
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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