In mastery testing a linear relationship between an optimal passing score and test length is presented with a new optimization criterion. The usual indifference zone approach, a binomial error model, decision errors, and corrections for guessing are discussed. Related results in sequential testing and the latent class approach are included. (CM)

Instructional programs organized according to modern educational technology are discussed within the purposes of criterion-referenced measurements used. The problems of criterion-referenced measurements include scoring and score interpretation, item and test analysis, and mastery testing. An overview of solutions and approaches to the problems and…