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Maximizing the Validity of a Test Battery as a Function of Relative Test Lengths for a Fixed Total Testing Time

Author(s):
Novick, Melvin R.; Woodbury, Max A.
Publication Year:
1967
Report Number:
RB-67-03
Source:
ETS Research Bulletin
Document Type:
Report
Page Count:
39
Subject/Key Words:
Office of Naval Research, Test Length, Test Validity, Timed Tests

Abstract

An explicit solution is given to the problem of assigning relative lengths to the tests of a battery and to determining the corresponding regression weights so as to maximize the multiple correlation with a specified criterion when the total testing time is fixed. Uniqueness of the obtained solution is proven. A solution algorithm is given for cases in which some of the testing times are zero. Some numerical examples are given.

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