Which type of validity is based on how well a test reflects actual work being done on the job?

Content validity refers to the degree to which the items on a test accurately reflect the knowledge, skills, and abilities relevant to the specific job or task for which the test is designed. It focuses on the relevance and representativeness of the test's content in relation to the actual work being performed. For example, in the context of fire officer training, a test with high content validity would include scenarios, questions, and tasks that closely mirror the realistic situations and challenges faced by fire officers on the job.

This type of validity is crucial as it ensures that the test measures what it is intended to measure, making the results meaningful and actionable. When a test has strong content validity, it is more likely to be effective in assessing the competence of individuals and directly relates to their job performance.