What index of reliability would you use to compare two evaluators' assessments of a group of job applicants?
A) KR-20
B) coefficient alpha
C) the Kappa statistic
D) the Spearman-Brown correction

Question

Quizplus · Accepted Answer

The Kappa statistic is the best index of reliability for comparing two evaluators' assessments of a group of job applicants. The Kappa statistic takes into account the possibility of chance agreement between the evaluators and provides a measure of agreement beyond that expected by chance. The other options listed are not appropriate for comparing two evaluators' assessments of a group of job applicants. KR-20 and coefficient alpha are both measures of internal consistency reliability and are typically used when evaluating the reliability of a test or questionnaire. The Spearman-Brown correction is used to estimate the reliability of a test that has been shortened or lengthened by splitting it in half.

What Index of Reliability Would You Use to Compare Two