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Lenkeit, Jenny – School Effectiveness and School Improvement, 2013
Educational effectiveness research often appeals to "value-added models (VAM)" to gauge the impact of schooling on student learning net of the effect of student background variables. A huge amount of cross-sectional studies do not, however, meet VAM's requirement for longitudinal data. "Contextualised attainment models (CAM)"…
Descriptors: Academic Achievement, Mathematics Achievement, Program Effectiveness, Foreign Countries