All else being equal, the more items an assessment device possesses which measure the same WRC, the greater its reliability and validity.

Question

Quizplus · Accepted Answer

Having more items that measure the same construct (WRC) in an assessment increases the chances of accurately capturing the construct, thereby enhancing both the reliability (consistency of measurement) and validity (accuracy in measuring what it is supposed to measure) of the assessment.

All Else Being Equal, the More Items an Assessment Device