Factor analysis of an administration of the Raven Progressive Matrices Test to children in grades 1, 2, and 3 revealed three orthogonal factors interpreted as (1) concrete and abstract reasoning, (2) continuous and discrete pattern completion, and (3) pattern completion through disclosure. Results are discussed in several contexts. (RC)

This bulletin attempts to explain the use and limitations of regularly the process of selecting educational areas which should receive additional interpret adequately their meaning to parents and students. A companion publication "Understanding Testing Purposes and Interpretations for Pupil Development," also prepared by HEW, was issued in 1960. A…