Which statement best describes validity?, The consistency of an instrument’s results, b. The ability of an instrument to measure what it is supposed to measure, c. The accuracy of the scoring procedure, d. The similarity of results across different groups, A questionnaire consistently yields the same results when given to the same participants twice. This shows:, a. Content validity, b. Reliability, c. Construct validity, d. Predictive validity, Which type of validity checks whether the instrument covers all aspects of the concept being measured?, a. Content validity, b. Face validity, c. Criterion validity, d. External validity, The degree to which test items appear to measure what they are intended to measure, based only on expert judgment, refers to:, a. Face validity, b. Construct validity, c. Reliability, d. Convergent validity, When a research instrument is tested by comparing its results with an already established tool, which type of validity is being measured?, a. Content validity, b. Concurrent validity, c. Predictive validity, d. Internal validity.

Research Instruments: Validity & Reliability

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