The Woodcock-Johnson Tests of Achievement (WJ ACH) is an individually administered, standardized test of academic achievement in the Woodcock-Johnson family of academic achievement tests. The 2014 revision, known as WJ IV ACH, was revised at the same time as the Woodcock-Johnson IV Tests of Cognitive Abilities and the Woodcock-Johnson IV Tests of Oral Language. The WJ achievement tests are designed to measure a variety of academic skills, primarily in reading, writing, and mathematics. These tests are designed to be clinically useful instruments that can help identify strengths and weaknesses in academic skills and may be especially useful for the identification of learning disabilities and determining educational needs for a variety of school difficulties. The academic skills measured by the WJ IV ACH are consistent with ...
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