What Is the Woodcock-Johnson III Test of Achievement?

The Woodcock-Johnson III Test of Achievement is one of several tests that make up the Woodcock-Johnson Tests of Cognitive Abilities. This specific psychological test measures academic achievement by testing how a person thinks and processes information and by testing that person’s verbal, thinking and cognitive-efficiency skills.

The Woodcock-Johnson III Test of Achievement is made up of 22 subtests, which include identifying letters and words, comprehending passages, reading vocabulary, writing and math fluency, editing and responding to questions about math facts. The test is designed to be flexible. For example, a teacher who wants to measure a student’s math proficiency only needs to give the math subtests and not the reading and writing subtests. Test results reveal a person’s strengths and weaknesses and help guide a teacher’s student- and skill-specific curriculum.