The Temporal Stability of the National Police Officer Selection Test

The National Police Officer Selection Test is a basic skills test of four subsections: mathematics, reading, grammar, and incident report writing. The purpose was to examine the temporal stability of the test in a sample of job applicants. Test-retest reliability coefficients were computed for a sample of 1215 police officer applicants. Reliability was evident at 17 different test-retest intervals. Also, the reliability of test did not differ significantly between applicants who had passed both times and those who failed both times. The results attest to the reliability and long-term stability of the test.