An item analysis of Raven's Colored Progressive Matrices among participants with Down syndrome.

摘要: Standardized tests are widely used in intellectual disability research, either as dependent or control variables. Yet, it is not certain that their items give rise to the same performance various groups under study. In present work, 48 participants with Down syndrome were matched on raw score Raven's Colored Progressive Matrices (RCPM) of undifferentiated etiology and typical children. An item analysis was then conducted using transformed difficulties method, a statistical approach designed detect differential functioning between groups. Results showed difficulty highly similar for three It concluded RCPM can be considerable confidence comparative studies including typical, intellectually disabled etiology. Some methodological implications these findings discussed.