Practice Quiz

PTA Physical Therapy Assistant

Category - Safety, Professionalism, and Evidence-Based Care

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What is validity?
  1. The degree to which the instrument is supposed to measure
  2. Accuracy and precision of a measurement procedure
  3. Characteristics of measuring instrument judged in terms of economy, convenience, and interpretability
Explanation
Answer: B - The degree to which the instrument is supposed to measure is called validity.

Accuracy and precision of a measurement procedure is called reliability.

Practicality is the characteristics of the measuring instrument judged in terms of economy, convenience, and interpretability.
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