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Koedel, Cory; Betts, Julian R. – National Center on Performance Incentives, 2009
Value-added modeling continues to gain traction as a tool for measuring teacher performance. However, recent research (Rothstein, 2009a, 2009b) questions the validity of the value-added approach by showing that it does not mitigate student teacher sorting bias (its presumed primary benefit). Our study explores this critique in more detail.…
Descriptors: Teacher Effectiveness, Teacher Evaluation, Models, Statistical Bias
BORMUTH, JOHN R. – 1966
IN AN EFFORT TO DEVELOP ACCURATE FORMULAS FOR PREDICTING AND CONTROLLING THE READABILITY OF LANGUAGE, FIVE BASIC PROBLEMS WERE STUDIED--(1) THE VARIOUS FEATURES OF WRITING STYLE AS LINEARLY RELATED TO COMPREHENSION DIFFICULTIES, (2) THE CHANGE OF STRENGTHS OF RELATIONSHIPS AS A FUNCTION OF READING ABILITY, (3) READABILITY PREDICTION MADE UPON…
Descriptors: Cloze Procedure, Data Processing, Grade 4, Grade 5