Considers four major decisions to illustrate the complexity of decision making about pretesting as part of the instructional process: whether a pretest should be administered; the behaviors that should be pretested; how pretesting should be accomplished; and how teaching strategies should be adjusted to pretest results. (MBR)

A replicable process for improving instruction through the consistent use of student data collected before, during, and after instruction is proposed. A rational analysis of different types of error rates (theoretical, base, posttest, instructional) and discrimination indices (base, posttest) leads to a set of rules for identifying test items and…