Analysis of Covariance : Is It the Appropriate Model to Study Change? / Paul T. Marston, Borich, Gary D.

The four main approaches to measuring treatment effects in schools; raw gain, residual gain, covariance, and true scores; were compared. A simulation study showed true score analysis produced a large number of Type-I errors. When corrected for this error, this method showed the least power of the fo...

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Bibliographic Details
Main Author:	Marston, Paul T., Borich, Gary D.
Corporate Author:	University of Texas at Austin. Research and Development Center for Teacher Education
Language:	English
Published:	[Place of publication not identified] : Distributed by ERIC Clearinghouse, 1977.
Subjects:	Achievement Gains. Analysis of Covariance. Comparative Analysis. Error of Measurement. Individual Differences. Mathematical Models. Measurement Techniques. Pretesting. Pretests Posttests. Raw Scores. Simulation. Statistical Analysis. Statistical Significance. Test Reliability. True Scores. Type I Errors Reports, Research.
Genre:	Reports, Research.
Physical Description:	27 pages
Format:	Microfilm Book

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