Which of the following statements about ad-hoc research measures is TRUE?
A) The user's manual for an ad-hoc measure provides population norms for scores on the measure.
B) Ad hoc research measures have been rigorously tested to assess their degrees of reliability and validity.
C) Ad-hoc research measures are best suited for drawing inferences of causality from research results.
D) There is generally little or no evidence of the validity of ad hoc research measures.

Question

Quizplus · Accepted Answer

Ad-hoc research measures are typically created specifically for a particular study or research question, and have not undergone the rigorous testing necessary to establish their validity. Therefore, there is generally little or no evidence of their validity, which limits their usefulness and the confidence that can be placed in their results.

Which of the Following Statements About Ad-Hoc Research Measures Is