Raven's advanced progressive matrices: Norms for first-year university students and the development of a short form

Five hundred and six first-year university students completed Raven's Advanced Progressive Matrices. Scores on Set II ranged from 6 to 35 (M = 22.17, SD = 5.60). The first 12 items of Set II were found to add little to the discriminative power of the test. Exploratory and confirmatory factor analyses failed to confirm Dillon et al.'s two-factor solution and suggested that a single-factor best represented performance on Set II. A short-form of Set II, consisting of 12 items extracted from the original 36, was developed and found to possess acceptable psychometric properties. Although this short form differed considerably in content from the short form previously devised by Arthur and Day, the two short forms did not differ with respect to concurrent validity and predictive power.