Content validity involves a judgment that all knowledges, skills, abilities, and other worker characteristics (KSAOs) needed for successful job performance (or a specified portion, the job content domain), have been adequately sampled by the tests used for employee selection and promotion decision making. The model outlines the procedure for…

This module, the second of four units about vocational competency measurement, is module 18 in the Vocational Education Curriculum Specialist series. The purpose stated for the document is to help vocational educators determine the specific job-related competencies that need to be tested. Content is organized into two sections, each of which…