Which type of evidence is most directly associated with construct validity?

Which type of evidence is most directly associated with construct validity?

• A. Reliability measures
• B. Content alignment to standards
• C. Convergent and divergent validity, factor analysis, and correlations with related measures
• D. Test length and duration

Answer: (C)

Construct validity is about whether the test actually measures the theoretical construct it’s intended to measure. The strongest support comes from how test scores relate to other measures in ways the theory predicts. Convergent validity means the test should align closely with other measures of the same construct, while divergent validity means it should not align too closely with measures of different constructs. Factor analysis helps show that the test’s items hang together on the same underlying factor that represents the construct. Additionally, correlations with related measures fit into a broader nomological network that theory uses to describe how the construct should relate to other variables. Reliability and test length speak to consistency and practicality, not directly to whether the test measures the intended construct, and content alignment to standards speaks to whether items cover the domain, which is about content validity, not construct validity. So evidence like convergent/divergent validity, factor analysis, and correlations with related measures best supports construct validity.

Construct validity is about whether the test actually measures the theoretical construct it’s intended to measure. The strongest support comes from how test scores relate to other measures in ways the theory predicts. Convergent validity means the test should align closely with other measures of the same construct, while divergent validity means it should not align too closely with measures of different constructs. Factor analysis helps show that the test’s items hang together on the same underlying factor that represents the construct. Additionally, correlations with related measures fit into a broader nomological network that theory uses to describe how the construct should relate to other variables. Reliability and test length speak to consistency and practicality, not directly to whether the test measures the intended construct, and content alignment to standards speaks to whether items cover the domain, which is about content validity, not construct validity. So evidence like convergent/divergent validity, factor analysis, and correlations with related measures best supports construct validity.