The Definition and Interpretation of Effects in Decision Oriented Evaluation Studies.

Cahan, Sorel; And Others

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Peer reviewed

ERIC Number: EJ346461

Record Type: CIJE

Publication Date: 1987

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The Definition and Interpretation of Effects in Decision Oriented Evaluation Studies.

Cahan, Sorel; And Others

International Journal of Educational Research, v11 n1 p91-104 1987

The estimation and evaluation of the effects of alternative educational or social policies is a major purpose of decision oriented, comparative evaluation studies. This paper reviews the rationale underlying the definition and interpretation of various measures of effect magnitude and examines their relevance to evalution research. (Author)

Descriptors: Control Groups, Decision Making, Educational Assessment, Educational Policy, Effect Size, Evaluation Methods, Experimental Groups, Mathematical Models, Measurement Techniques, Research Methodology

Publication Type: Journal Articles; Reports - Descriptive

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Language: English

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Note: Theme issue with title "Educational Evaluation: The State of the Field."