Woodcock Johnson Psychoeducational Battery

Originally published in 1977, the Woodcock Johnson (WJ) was the first comprehensive psychoeducational battery with conormed measures of cognitive abilities, academic achievement, and interests. It was revised in 1989 to become the Woodcock Johnson-Revised (WJ-R), dropping the interest measure and restructuring the cognitive measure to reflect the Cattell-Horn [Page 1054]Gf-Gc model of intelligence. The current version, the Woodcock Johnson-III (WJ-III), is comprised of two separate but conormed batteries: the Tests of Cognitive Abilities and the Tests of Achievement.

The WJ-III Tests of Cognitive Abilities was developed using an integration of the original Cattell-Horn Gf-Gc model of intelligence and Carroll's Three Stratum model, the Cattell-Horn-Carroll (CHC) theory. This second-iteration test development centering on essentially the same model has resulted in an instrument that is one of the most theoretically sound measures of intelligence on the market today. Consisting of 20 subtests organized into standard and extended batteries, the WJ-III Tests of Cognitive Abilities generates scores on seven broad CHC clusters as well as measures of general intellectual ability (brief, standard, and extended). Each subtest was chosen to represent a different narrow ability as defined by CHC theory (e.g., induction, associative memory) while the seven broad clusters represent broad CHC factors (e.g., fluid reasoning, long-term retrieval).