What is a key requirement when evaluating the validity of an assessment instrument used for diverse student populations?

• A. Compare scores to a national benchmark only
• B. Examine reliability and validity evidence, bias, and cross-cultural appropriateness
• C. Rely on the publisher's claims exclusively
• D. Use the instrument only in a single district

Answer: (B)

When evaluating an assessment instrument for diverse student populations, you must examine reliability and validity evidence, as well as potential bias and cross-cultural appropriateness. Reliability shows that scores are consistent across administrations and forms. Validity shows that the test actually measures the intended construct. For diverse groups, it’s crucial to check for bias and cultural fairness—things like differential item functioning, language clarity, and content relevance across different cultures. This involves looking beyond publisher claims and considering evidence gathered with populations similar to the students being assessed. Merely comparing scores to a national benchmark or using the instrument in only one district doesn’t address whether the instrument yields fair and accurate interpretations for all groups.