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An Analysis of Selected Statistical Techniques Utilized in Quasi-Experimental Designs.
Prater, James M., Jr. – 1983
The central purpose of the present study was to evaluate several statistical techniques (analysis of variance (ANOVA) on raw gains, standardized ANOVA, standard analysis of covariance (ANCOVA), and z-score ANOVA) under various quasi-experimental conditions (three levels of reliability, three levels of sample size, three levels of gain, and the…
Descriptors: Achievement Gains, Analysis of Covariance, Analysis of Variance, Computer Simulation