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Determining Optimal Test Lengths with a Fixed Total Testing Time

University of Massachusetts at Amherst

The problem of determining optimal test lengths with fixed total testing time has proven to be a difficult one for criterion-referenced test developers. A solution is offered in this paper in which test lengths are determined by considering the importance, reliability, and validity of scores measuring objectives in a criterion-referenced test with a constraint set on the total desired test length.

Educational and Psychological Measurement, Vol. 47, No. 2, 339-347 (1987)
DOI: 10.1177/0013164487472005


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