This study examined the differences between the Raven's Standard Progressive Matrices scores obtained using the European (Raven, Court & Raven,1977) and U.S.(Raven,1986) nonnative samples and the Matrix Analogies Test-Expanded Form (MAT-EF) (Naglieri, 1985b). The sample of 34 hearing-impaired students (26 males and 8 females) with a mean age of 13 years 7 months (SD of 2 years, 2 months) attended a state residential school for the deaf. Raven's and Naglieri's matrices tests were administered in counterbalanced order in one session. Results indicated that the sample earned similar mean scores on the Raven's U.S. norms and Naglieri's MAT-EF, but both these tests' results were significantly lower than the scores obtained from the Raven's European norms. Analysis of the difference between the derived scores earned by the Raven's U.S. and European norms revealed considerable inconsistency by age and percentile point (IQ level) despite high and significant correlations among these measures. These results suggest that practitioners should use caution when choosing between the Raven's European and U.S. norms and may find the MAT-EF a suitable alternative.
Naglieri, J. A., & Welch, J. A. (2019). Use of Raven’s and Naglieri’s Nonverbal Matrix Texts. JADARA, 24(3). Retrieved from https://repository.wcsu.edu/jadara/vol24/iss3/10