A performance appraisal tool that is able to measure the same person at multiple intervals in a stable and consistent manner has achieved:

Question

Quizplus · Accepted Answer

Test-retest reliability refers to the consistency of the results obtained from the same test or measure when it is administered to the same person on two or more separate occasions. In this case, the performance appraisal tool is able to measure the same person at multiple intervals in a stable and consistent manner, indicating that it has achieved test-retest reliability. Equivalence, construct validity, and inter-rater reliability are all important concepts in the context of performance appraisal tools, but they are not directly related to the scenario described in the question.

A Performance Appraisal Tool That Is Able to Measure the Same