Setting a cutting score is a key problem in criterion-referenced measurement which is discussed within a decision theoretic approach when just one student is considered. A minimum information solution is given and compared with approaches when there is information about a group of students. Formulas illustrate the discussion. (CM)

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)