Summary. The Coloured Progressive Matrices test has proved to be a useful non‐verbal instrument apart from some doubts concerning its reliability. A pilot investigation gave reason for belief that the test could be group‐administered with higher reliability than had hitherto been reported. The test was administered to 159 6 to 7‐year‐olds, coefficients of internal consistency and stability being .89 and .87–.76, respectively. Relationship of matrices scores with those obtained from other instruments are quoted, together with score distributions and directions for group administration with young children.
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