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Morris, Tim T.; Davies, Neil M.; Dorling, Danny; Richmond, Rebecca C.; Smith, George Davey – British Educational Research Journal, 2018
Value-added measures of educational progress have been used by education researchers and policy-makers to assess the performance of teachers and schools, contributing to performance-related pay and position in school league tables. They are designed to control for all underlying differences between pupils and should therefore provide unbiased…
Descriptors: Validity, Value Added Models, Genetics, Foreign Countries
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Fox, Lindsay – Education Finance and Policy, 2016
Current uses of value-added modeling largely ignore or assume away the potential for teachers to be more effective with one type of student than another or in one subject than another. This paper explores the stability of value-added measures across different subgroups and subjects using administrative data from a large urban school district. For…
Descriptors: Teacher Effectiveness, Outcome Measures, Teacher Improvement, School Statistics