A coefficient of correlation is calculated between Malcolm's score on a test of sociopathy and a clinician's rating of Malcolm on the variable of sociopathy.This coefficient of correlation might also be referred to as
A) an index of reliability.
B) an index of sociopathy.
C) a validity coefficient.
D) a content-related validity coefficient.

Question

Quizplus · Accepted Answer

A coefficient of correlation between a test score and an external criterion (in this case, the clinician's rating) is a measure of the extent to which the test score predicts or is related to the criterion. This is an indicator of validity, specifically criterion-related validity. Both reliability and content-related validity are not as directly related to this calculation.

A Coefficient of Correlation Is Calculated Between Malcolm's Score on a Test