What is content validity concerned with?

Content validity is specifically focused on the extent to which a test or assessment tool measures the construct it intends to measure by covering all relevant aspects of that phenomenon. It ensures that the items included in the test are representative of the domain being assessed, capturing its complexity and breadth. This is essential for ensuring that the conclusions drawn from the test results are valid and accurately reflect the individual's abilities or characteristics related to that specific construct.

For example, if a test is designed to measure depression, it should include items that assess various symptoms and experiences associated with depression, such as mood, behavior, and physical symptoms. By ensuring a comprehensive coverage of these aspects, content validity establishes the relevance and appropriateness of the test for its intended purpose.