Validity in psychological testing refers to what?

Validity in psychological testing refers to what?

• A. The extent to which a test measures what it claims to measure
• B. The consistency of scores across time
• C. The speed of response
• D. The difficulty level of items

Answer: (A)

Validity is the degree to which a test measures what it claims to measure and supports the inferences drawn from the scores. This means the items should genuinely reflect the construct you’re trying to assess, and the resulting scores should be meaningful for decisions based on that construct. Different facets of validity help show this: content validity checks that the test covers the entire domain of interest; criterion validity looks at how well the test scores relate to external criteria or outcomes (predictive or concurrent); and construct validity examines how the test relates to other measures in a way that fits theoretical expectations, including both convergent and discriminant aspects. The other options describe properties that don’t directly address whether the test measures the intended construct. Consistency of scores over time is reliability, focusing on stability rather than accuracy of what’s being measured. Speed of response relates to how quickly someone answers, which doesn’t determine that the test is measuring the right thing. Item difficulty concerns how hard the questions are, which affects test characteristics but not whether the test captures the intended construct.

Validity is the degree to which a test measures what it claims to measure and supports the inferences drawn from the scores. This means the items should genuinely reflect the construct you’re trying to assess, and the resulting scores should be meaningful for decisions based on that construct. Different facets of validity help show this: content validity checks that the test covers the entire domain of interest; criterion validity looks at how well the test scores relate to external criteria or outcomes (predictive or concurrent); and construct validity examines how the test relates to other measures in a way that fits theoretical expectations, including both convergent and discriminant aspects.

The other options describe properties that don’t directly address whether the test measures the intended construct. Consistency of scores over time is reliability, focusing on stability rather than accuracy of what’s being measured. Speed of response relates to how quickly someone answers, which doesn’t determine that the test is measuring the right thing. Item difficulty concerns how hard the questions are, which affects test characteristics but not whether the test captures the intended construct.