The Woodcock-Johnson Psycho-Educational Battery is a wide-range comprehensive set of individually administered tests, with norms provided from the preschool to the geriatric level. Part one contains twelve subtests of academic ability and aptitude. Part two contains ten subtests measuring academic achievement. The final section measures scholastic and nonscholastic interests. Norms were based upon a nationwide sample of 4,732 subjects, proportioned to match the exact distribution of sex-by-race, region-by-urbanization, and occupational status of the U.S. population. Concurrent validity was gathered by comparing results of standardized tests administered concurrently with the reading, mathematics, written language, and knowledge aptitude subtests--from part one of the battery. These same subtests were also used to predict achievement on the corresponding achievement subtests in the battery. (Fifteen tables report norms, reliability, and validity--mainly as cluster scores). (CP)