A Formula For Correction For Range.

Lowerre, George F.

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Peer reviewed

ERIC Number: EJ073631

Record Type: CIJE

Publication Date: 1973

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A Formula For Correction For Range

Lowerre, George F.

Educational and Psychological Measurement, 33, 1, 151-2, Spr 73

The purpose of this note is to derive a simple formula which gives the correlation between shortened versions of two tests, based on the correlations between the longer tests. (Author)

Descriptors: Correlation, Mathematical Applications, Scoring Formulas, Statistical Analysis

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