ANOVA of Residuals and ANCOVA: Correcting an Illusion by Using Model Comparisons and Graphs.

Maxwell, Scott E.; And Others

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Peer reviewed

ERIC Number: EJ326007

Record Type: Journal

Publication Date: 1985

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ANOVA of Residuals and ANCOVA: Correcting an Illusion by Using Model Comparisons and Graphs.

Maxwell, Scott E.; And Others

Journal of Educational Statistics, v10 n3 p197-210 Fall 1985

It is recommended that the significance test of treatment effects in analysis of covariance be conceptualized, not as an analysis of residuals, but as a comparison of models whose parameters are estimated by the principle of least squares. (Author/LMO)

Descriptors: Analysis of Covariance, Higher Education, Instructional Improvement, Least Squares Statistics, Mathematical Models, Statistical Analysis, Statistics, Teaching Methods

Publication Type: Journal Articles; Reports - Research

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Language: English

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