To what criterion does the following definition refer: "the notion that instruments should perform the same way over time."
A) Validity
B) External threat
C) Reliability
D) Error

Question

Quizplus · Accepted Answer

This definition refers to "Reliability," which is about the consistency of a measure. An instrument is considered reliable if it yields the same results under consistent conditions over time.

To What Criterion Does the Following Definition Refer: "The Notion