Validation of test instruments is primarily concerned with which psychometric property?

Validation of test instruments is primarily concerned with which psychometric property?

• A. Reliability
• B. Validity
• C. Calibration
• D. Standardization

Answer: (B)

Validity is the idea that a test actually measures what it’s meant to measure and that the interpretations and decisions based on its scores are appropriate. In practice, validation gathers evidence that the items, scoring, and outcome interpretations align with the intended construct—things like content validity (items cover the domain), construct validity (scores relate to other measures as theory predicts), and criterion validity (scores predict relevant outcomes). Reliability looks at consistency of results, but not whether the test targets the right construct. Calibration deals with how measurements map onto true values, and standardization ensures uniform administration and scoring. So validation focuses on the accuracy and appropriateness of the test’s inferences about what it measures.

Validity is the idea that a test actually measures what it’s meant to measure and that the interpretations and decisions based on its scores are appropriate. In practice, validation gathers evidence that the items, scoring, and outcome interpretations align with the intended construct—things like content validity (items cover the domain), construct validity (scores relate to other measures as theory predicts), and criterion validity (scores predict relevant outcomes). Reliability looks at consistency of results, but not whether the test targets the right construct. Calibration deals with how measurements map onto true values, and standardization ensures uniform administration and scoring. So validation focuses on the accuracy and appropriateness of the test’s inferences about what it measures.