Linear Dependence on Gain Scores in Their Components Imposes Constraints on Their Use and Interpretation: Comment on "Are Simple Gain Scores Obsolete?".

Humphreys, Lloyd G.

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Peer reviewed

ERIC Number: EJ542067

Record Type: Journal

Publication Date: 1996

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ISSN: ISSN-0146-6216

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Linear Dependence on Gain Scores in Their Components Imposes Constraints on Their Use and Interpretation: Comment on "Are Simple Gain Scores Obsolete?"

Humphreys, Lloyd G.

Applied Psychological Measurement, v20 n3 p293-94 Sep 1996

The reliability of a gain is determined by the reliabilities of the components, the correlation between them, and their standard deviations. Reliability is not inherently low, but the components of gains in many investigations make low reliability likely and require caution in the use of gain scores. (SLD)

Descriptors: Achievement Gains, Change, Correlation, Error of Measurement, Measurement Techniques, Reliability, Scores, Test Theory

Publication Type: Book/Product Reviews; Reports - Evaluative; Journal Articles

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Language: English

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