Validity refers to:
A) the ability of a diet assessment instrument to measure what it is intended to measure.
B) the ability of a diet assessment instrument to produce the same estimate of dietary intake on two separate occasions.
C) accuracy.
D) a and c
E) b and c

Question

Quizplus · Accepted Answer

Validity refers to the ability of a diet assessment instrument to measure what it is intended to measure (accuracy). Therefore, choices A and C are correct. The ability of a diet assessment instrument to produce the same estimate of dietary intake on two separate occasions is the definition of reliability, which is not related to validity. Therefore, choice B is incorrect. Both A and C are correct, making choice D the best answer.

Validity Refers To