Reliability and validity of the Kopas Personnel Test Battery

Abstract

"For a sample of 88 plant protection officers, the seven tests in the battery were uncorrelated with one another, and correlations with Supervisory Ratings were negligible. The multiple correlation was .348. In two independent samples, the internal consistency reliabilities of the six non-performance tests… ranged from .58 to .93. In another sample, test-retest reliabilities ranged from .40 to .87." (PsycInfo Database Record (c) 2025 APA, all rights reserved)