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Subscores and Validity

Author(s):
Haberman, Shelby J.
Publication Year:
2008
Report Number:
RR-08-64
Source:
ETS Research Report
Document Type:
Report
Page Count:
11
Subject/Key Words:
Validity, Reliability, Correlation, Subscores

Abstract

Incremental validity may be measured by the difference between these two coefficients of determination. This difference is no greater than the reliability of the residual from linear prediction of the subscores by the total score.

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