Define content validity and give an example.

• A. The extent to which a measure covers the domain of the construct; example: survey items cover all aspects of job satisfaction.
• B. The degree to which a test correlates with external outcomes measured later.
• C. The stability of test scores across time.
• D. The consistency of item wording across versions.

Answer: (A)

Content validity is about how well a measure covers the entire domain of the construct it intends to assess. In practice, you want the items to reflect all the important facets of that construct so the measure truly represents what you’re trying to measure. For example, a survey on job satisfaction should include items about pay, work conditions, supervision, advancement, and relationships with coworkers. If it leaves out key aspects, it may miss parts of the construct, reducing its content validity.

The other ideas refer to different concepts: predicting future outcomes relates to predictive validity; stability across time is a matter of reliability (test-retest); and consistent wording across versions concerns reliability or measurement equivalence, not whether the content covers the domain.