Determining Optimal Test Lengths with a Fixed Total Testing Time
Ronald K. Hambleton · Educational and Psychological Measurement · 1987
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.