A process of testing the effectiveness of instruction by administering the criterion test immediately after the instruction. Also, a process through which a course is administered and revised until learners effectively attain the base line objectives.

The degree to which a test measures what it is intended to measure. Although there are several types of validity and different classification schemes for describing validity there are two major types of validity that test developers must be concerned with, they are content-related and criterion-related validity.

Design elements that repeat a segment of a lesson differently to enhance learning.

A variant of job rotation in which a separate work area is set up for a learner so that the actual work situation does not pressure the learner, (e.g. cockpit simulator).

web based instruction (WBI)

Web-based Instruction is delivered over public or private computer networks and displayed by a Web browser. WBI is available in many formats and several terms are linked to it; on-line courseware, distance education on-line, etc. WBI is not downloaded CBT, but rather on-demand training stored in a server and accessed across a network. WBI can be updated very rapidly, and access to the training controlled by the training provider.

workbook

A handout that contains procedures and exercises designed to assist the learner in achieving the learning objectives.

A measure (usually computed as a percentage) of worker performance that compares the standard time allowed to complete a task to the actual worker time to complete it.

The use of number of random samples to determine the frequency with which certain activities are performed. Performance on a work sample is frequently used as a criterion against which prediction devices in evaluation are validated.