Which is NOT an assumption that should be met in order to use KR-21?
A) Items should be dichotomous.
B) Items should be of equal difficulty.
C) Items should be homogeneous.
D) Items should be scorable by computer.

Question

Quizplus · Accepted Answer

KR-21 does not require items to be scorable by computer; it is a formula for estimating reliability based on dichotomous items, assuming equal difficulty and homogeneity.

Which Is NOT an Assumption That Should Be Met in Order