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Supporting a new era of CHC theory, the WJ IV Tests of Cognitive Abilities contain the greatest breadth of cognitive abilities of any standardized body of tests. New tests and clusters have been designed to place emphasis on the most useful measures for identifying individuals' patterns of strengths and weaknesses through seven different broad CHC abilities. The WJ IV Tests of Cognitive Abilities also offer a new Gf-Gc Composite for comparison with other cognitive abilities, oral language, and achievement.