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Jabr, Dua; Cahan, Sorel – School Effectiveness and School Improvement, 2015
This study contributes to the investigation of the variability of the schooling effect on cognitive development between educational systems and its underlying factors, by focusing on 3 cases differing in the characteristics assumed to affect the magnitude of the schooling effect (the quality of the schooling and students' mean ability to benefit…
Descriptors: Foreign Countries, Cognitive Development, Outcomes of Education, Educational Quality

Cahan, Sorel; And Others – Studies in Educational Evaluation, 1996
The regression-discontinuity design was used to study the cumulative effect of ability grouping in mathematics in Israeli junior high schools. Results from a final sample of 1,169 seventh graders show that placement in ability groups increases the gap between students at different grade levels. (SLD)
Descriptors: Ability Grouping, Grade 7, Junior High School Students, Junior High Schools