A criterion is considered valid if it measures what it is intended to measure. Validityrefers to the accuracy of a measure, meaning the criterion accurately reflects the concept or outcome it is supposed to assess. For example, if a criterion is designed to measure patient satisfaction, it should accurately capture patients' perceptions of their care.
Consistently yields the same results (A): This describes reliability, not validity.
Does not change with changes in technology (B): This is not related to validity.
Is applicable to many groups and settings (C): This refers to generalizability, not validity.
References
NAHQ Body of Knowledge: Measurement Principles in Quality Improvement
NAHQ CPHQ Exam Preparation Materials: Validity and Reliability in Quality Measures
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