Since the PAI requires test takers to provide ratings on a response scale that has four options--False, Not at all true, Slightly true, Mainly true, and Very true--the appropriate formula for estimating internal consistency is ______.
A) Spearman Brown
B) KR-20
C) product moment correlation
D) coefficient alpha

Question

Quizplus · Accepted Answer

Coefficient alpha is the appropriate formula for estimating internal consistency when a test uses a response scale that has four or more options. Therefore, the use of the PAI's four-point response scale warrants the use of coefficient alpha for estimating internal consistency.

Since the PAI Requires Test Takers to Provide Ratings on a Response