A coefficient of correlation is calculated between Henry's score on a test of sociopathy and a clinician's rating of Henry 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 a clinician's rating is a measure of the relationship between the two variables. This relationship is an indication of the validity of the test as a measure of the construct being assessed, in this case, sociopathy. Therefore, the coefficient of correlation is often referred to as a validity coefficient. A is incorrect because reliability refers to the consistency of measurement, not the relationship between variables. B is incorrect because it suggests that the coefficient of correlation is a direct measure of sociopathy, which is not accurate. D is incorrect because content-related validity coefficients are specific to tests that are intended to measure specific content areas.

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