Which two fundamental types of validity evidence are used to support a test's use in counseling?

Which two fundamental types of validity evidence are used to support a test's use in counseling?

• A. Face validity and content validity
• B. Construct validity and criterion-related validity (including predictive and concurrent validity)
• C. External validity and internal validity
• D. Criterion validity only

Answer: (B)

Understanding how a counseling test earns legitimacy involves two main types of validity evidence: construct validity and criterion-related validity. Construct validity is about whether the test truly measures the theoretical attribute it claims to measure. It looks at how the test scores relate to other measures that should theoretically be related (convergent validity) and not related (discriminant validity), and often uses methods like factor analysis to show the underlying structure aligns with the construct you’re assessing. Criterion-related validity examines how well the test scores relate to external outcomes or criteria. This can be shown in two ways: predictive validity, where scores forecast future outcomes (for example, how well a career interest inventory predicts job placement or satisfaction), and concurrent validity, where scores correlate with a criterion measured at the same time (such as matching test scores with current clinical impressions or observed behaviors). Face validity and content validity focus on appearance and coverage rather than how well the test supports inferences about the construct or its outcomes, so they don’t by themselves establish useful validity in counseling decisions. External and internal validity pertain to research design issues rather than the instrument’s validity evidence. Therefore, the strongest justification for using a test in counseling combines evidence that it truly measures the intended construct and that its scores relate meaningfully to relevant criteria, including both predictive and concurrent forms of criterion-related validity.

Understanding how a counseling test earns legitimacy involves two main types of validity evidence: construct validity and criterion-related validity. Construct validity is about whether the test truly measures the theoretical attribute it claims to measure. It looks at how the test scores relate to other measures that should theoretically be related (convergent validity) and not related (discriminant validity), and often uses methods like factor analysis to show the underlying structure aligns with the construct you’re assessing.

Criterion-related validity examines how well the test scores relate to external outcomes or criteria. This can be shown in two ways: predictive validity, where scores forecast future outcomes (for example, how well a career interest inventory predicts job placement or satisfaction), and concurrent validity, where scores correlate with a criterion measured at the same time (such as matching test scores with current clinical impressions or observed behaviors).

Face validity and content validity focus on appearance and coverage rather than how well the test supports inferences about the construct or its outcomes, so they don’t by themselves establish useful validity in counseling decisions. External and internal validity pertain to research design issues rather than the instrument’s validity evidence. Therefore, the strongest justification for using a test in counseling combines evidence that it truly measures the intended construct and that its scores relate meaningfully to relevant criteria, including both predictive and concurrent forms of criterion-related validity.