| Abstract: | Reports reliabilities for the Raven Coloured Progressive Matrices (CPM) for 3 age groups (5?–6?, 6?–7?, and 7?–8? yrs) and 3 ethnic groups. The Ss were 783 Anglo, Black, and Hispanic children. Reliability estimates were calculated using all CPM items and only those with p values between .20 and .80. Results indicate that the CPM did not appear to be equally reliable for all age groups, with the lowest reliability found for the youngest. The test appeared to be equally reliable for the 3 ethnic groups. Eliminating items with extremely low or high p values did little to affect the reliability of the test. (5 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
