Which validity refers to whether the test content represents the domain it is intended to cover?

• A. Content validity
• B. Construct validity
• C. Reliability
• D. Face validity

Answer: (A)

Content validity focuses on whether the test items truly represent the domain they are meant to assess. The idea is to ensure the questions cover the relevant topics and skills in a way that reflects the full scope of the subject, not just a random collection of items. To build this, you create a blueprint that maps each topic in the domain to items and have subject matter experts review the items to confirm they are representative, comprehensive, and proportionally weighted to reflect importance. This expert review helps ensure important areas aren’t left out and that irrelevant material isn’t included.

This is different from other types of validity. Construct validity asks whether the test actually measures the theoretical trait or construct it intends to, which goes beyond just content coverage. Reliability is about whether the scores are consistent across administrations or raters. Face validity is about whether the test appears to measure what it’s supposed to, based on superficial impressions, rather than rigorous coverage of the domain.

For example, an exam designed to assess clinical knowledge in nursing should include questions across essential areas like patient assessment, pharmacology, pathophysiology, and clinical decision-making, with content weighted to reflect their importance in practice. If the test omits key domains or overemphasizes irrelevant topics, its content validity would be weak, even if other aspects of validity or reliability are solid.