What problem is Cohen's kappa intended to correct?
A) Split-half reliability tends to underestimate the true reliability of the full test.
B) Split-half reliability tends to overestimate the true reliability of the full test.
C) The simple percentage of agreement tends to underestimate the true level of agreement between two observers.
D) The simple percentage of agreement tends to overestimate the true level of agreement between two observers.

Question

Quizplus · Accepted Answer

The simple percentage of agreement tends to overestimate the true level of agreement between two observers, as it does not take into account the possibility of agreement occurring by chance. Cohen's kappa corrects for chance agreement and provides a more accurate measure of inter-rater reliability.

What Problem Is Cohen's Kappa Intended to Correct