Abstract
Freshmen at The Pennsylvania State University were stratified on the basis of Scholastic Aptitude Test(SAT) scores and major(science versus nonscience) and a stratified random sample of 100 was selected and individually tested with the Woodcock-Johnson Psycho-Educational Battery, Part II, Tests of Achievement (WJ). Freshman performances were analyzed by subtests and cluster scores. For each of the four cluster scores, means, standard deviations, and internal consistencies were computed. The mean, standard deviation, and internal consistency, Kendall Tau (between-item order based on the WJ standardization sample and item order based on the sample's performance), and the number of subjects reaching ceiling were computed for each subtest. Results indicated minor inversions in item orders and pronounced ceiling effects on all subtests that resulted in lowered subtest and cluster reliability estimates.
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