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Analysis of Covariance	2
Error of Measurement	2
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Dunivant, Noel	1
Linn, Robert L.	1
Werts, Charles E.	1

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The Effects of Measurement Error on Statistical Models for Analyzing Change. Final Report.

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Dunivant, Noel – 1981

The results of six major projects are discussed including a comprehensive mathematical and statistical analysis of the problems caused by errors of measurement in linear models for assessing change. In a general matrix representation of the problem, several new analytic results are proved concerning the parameters which affect bias in…

Descriptors: Algorithms, Analysis of Covariance, Change, Error of Measurement

A Review and Synthesis of Educational Measurement Procedures for Studying Growth with the Purpose of Specifying the Appropriate Applications for These Procedures. Final Report.

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Werts, Charles E.; Linn, Robert L. – 1972

The objective of this study was to review and integrate the various methodologies used in the study of individual growth (especially academic growth). This was accomplished by means of Joreskog's general model for the analysis of covariance structures, i.e., each of the disparate methodologies available from the literature was shown to be a…

Descriptors: Academic Achievement, Analysis of Covariance, Educational Research, Error of Measurement