Illumination Intensities and Test Performance

Abstract

The purpose of this experiment was to examine personnel test performance at conventional and extreme illumination levels. Illumination levels of 1.0, 3.5, 50, and 400 ft-c. were used under conditions controlled for temperature and glare. The tests used were Forms A, B, I and II of the Wonderlic Personnel Test. 45 freshmen college students were administered different and systematically varied forms of the test at each illumination level. After the scores were equated to one form of the test, it was concluded that no differences in performance on the test were associated with illumination levels above 3.5 ft-c.