A method of testing scores' internal consistency that indicates the average correlation between scores on all pairs of items on a survey is called ______.
A) internal validity
B) test-retest validity
C) Cronbach's alpha
D) correlational average

Question

Quizplus · Accepted Answer

Cronbach's alpha measures the internal consistency of a test or survey by calculating the average correlation between scores on all pairs of items. A coefficient of 0.7 or higher is generally accepted as indicating good internal consistency. A and B are not correct because they refer to different types of validity and reliability measures that do not directly assess internal consistency. D is not a commonly used term in psychometrics.

A Method of Testing Scores' Internal Consistency That Indicates the Average