The Woodcock-Johnson Tests of Cognitive Abilities is a set of intelligence tests first developed in 1977 by Woodcock and Johnson. It was revised in 1989 and again in 2001; this last version is commonly referred to as WJ-III.[1] They may be administered to children from age two right up to the oldest adults (with norms utilizing individuals in their 90s). WJ-III is praised for covering "a wide variety of cognitive skills."[2]
There are 7 tests in the standard battery, and an additional 14 in the extended battery, allowing for a considerably detailed analysis of cognitive abilities. The Cattell-Horn-Carroll theory factors that this test examines are: Comprehension-Knowledge, Long-Term Retrieval, Visual-Spatial Thinking, Auditory Processing, Fluid Reasoning, Processing Speed, Short-Term Memory and Quantitative Knowledge and Reading-Writing Ability. A General Intellectual Ability (GIA) or Brief Intellectual Ability (BIA) may be obtained.
The test is currently in its third edition.[3] A normative update was made available in 2007.[4]