Prison Norms for Raven's Standard Progressive Matrices

Abstract

Prison norms for the Raven's Standard Progressive Matrices were developed using 1126 male inmates in a prison in Nevada. 556 of the men were white, 480 black, 55 Mexican, 19 Cuban, 9 Asian, and 7 Native-American. Norms were provided for three age categories—under 35 years, ages 36 to 54, and all ages combined. Normative information was presented for white inmates, black inmates, and all ethnicities combined. There was substantial overlap in distribution of scores by black and white inmates.