Which type of reliability study may yield a lower coefficient, before correction, due to the reduced number of items?
A) Split-half reliability
B) Interrater reliability
C) Coefficient alpha
D) Kuder-Richardson-20

Question

Quizplus · Accepted Answer

Split-half reliability involves dividing a test into two halves and comparing scores between them. This method may yield a lower coefficient, before correction, if the test has a reduced number of items, as the division into halves reduces the number of items even further. Other types of reliability studies, such as interrater reliability, coefficient alpha, and Kuder-Richardson-20, may not be as affected by the number of items in the test.

Which Type of Reliability Study May Yield a Lower Coefficient