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Peer reviewedPorter, Andrew C.; And Others – American Educational Research Journal, 1978
The estimation of the "size of effect" of educational programs is a difficult problem in program evaluation. It is argued that the intentions of the program and the nature of the measures must be known in order to estimate program effects. (JKS)
Descriptors: Data Analysis, Educational Assessment, Instructional Programs, Measurement Objectives
Download full textBryant, Fred B. – 1984
Because research synthesis enables one to determine either the overall effectiveness of a particular treatment or the relative effectiveness of different types of treatments, it is becoming increasingly popular as a tool in program evaluation. Numerous methodological problems arise, however, when research synthesis is applied to studies conducted…
Descriptors: Educational Research, Effect Size, Evaluation Methods, Intervention
