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

Question

Quizplus · Accepted Answer

This statement is true as increasing the number of items that measure the same knowledge, skill or ability (KSA) increases the consistency and accuracy of the assessment device, hence, improving its reliability and validity. This is because having multiple items that measure the same KSA reduces the effect of random error and allows for a more accurate measure of the individual's true ability.

All Else Being Equal,the More Items an Assessment Device Possesses