Which of the following represents the average of all possible split-half reliabilities for a construct?
A) R2
B) S
C) a
D) W

Question

Quizplus · Accepted Answer

The split-half reliability coefficient is an estimation of the reliability of a test consisting of two halves. Since there are different ways to split a test into halves and the reliability coefficient can vary, it is recommended to calculate the average of all possible split-half reliability coefficients to obtain a more accurate estimate of the reliability of a test. This average is represented by coefficient alpha (α), also known as Cronbach's alpha. Therefore, the correct option is C.

Which of the Following Represents the Average of All Possible