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)

The author surveys literature and practice, primarily in Great Britain and the United States, about multiple-choice testing, comments on criticisms, and defends the state of the art. Varous item types, item writing, test instructions and scoring formulas, item analysis, and test construction are discussed. An extensive bibliography is appended.…