Today, the most sound test of the validity of a diagnostic system is usually its correspondence with ______.
A) behavioral observations
B) maturational factors
C) elementary school records
D) treatment prognosis

Question

Quizplus · Accepted Answer

Behavioral observations provide the most direct and objective measure of a diagnostic system's validity since they involve observing the individual's actual behavior and comparing it to the diagnostic criteria. Maturational factors and elementary school records may inform the diagnostic process but are not sufficient to test the validity of a diagnostic system. Treatment prognosis is important but may be influenced by factors other than diagnostic accuracy.

Today, the Most Sound Test of the Validity of a Diagnostic