When validity of an instrument is determined, the nurse researcher assesses what? (Select all that apply.)
A) Stability
B) Variance
C) Accuracy
D) Precision

Question

Quizplus · Accepted Answer

Validity refers to how accurately an instrument measures what it is supposed to measure. Accuracy is directly related to validity as it indicates how close the measured values are to the actual (true) values. Precision, while often related to reliability, in the context of validity, refers to the consistency of the measurement, which indirectly affects how accurately the instrument can measure the intended variable. Stability and variance are more directly related to reliability than to validity. Stability refers to the consistency of measurements over time, and variance refers to the spread of scores, which can affect reliability but is not a direct measure of validity.

When Validity of an Instrument Is Determined, the Nurse Researcher