Four criteria for evaluating the appropriateness of units of analysis for task analytic research are proposed. Meeting all four criteria and thus recommended for use in behavior analytic work is percentage correct with competent performance coded and a task analysis grid showing individual step performance. (Author/DB)

An analytical method for defining and describing the behavioral elements of those tasks that are inherent in the operation of large cargo trucks for mission durations ranging from four to eight hours was developed and validated in this study. The preliminary analysis of task elements was subjected to validation by several means: structured…

Although predictive validation is the primary method of justifying a particular work sample for use as an assessment device, content validation is being recognized as an alternative strategy. Confusion exists over whether content validity should refer to the representativeness of the work sample, in terms of tasks to be performed, or behavioral…