The Woodcock-Johnson IV (WJ IV) is a comprehensive assessment system designed to measure cognitive abilities, academic achievement, and oral language abilities. First published in 1977 and now in its fourth edition, the WJ IV represents the gold standard in psychoeducational testing.
The assessment is widely used in educational, clinical, and research settings to identify strengths and weaknesses in cognitive and academic functioning, diagnose learning disabilities, and guide educational planning and interventions.
18 tests measuring general intellectual ability, broad and narrow cognitive abilities including: comprehension-knowledge, fluid reasoning, short-term working memory, cognitive processing speed, auditory processing, long-term retrieval, visual processing, and more.
20 tests measuring academic achievement in reading, mathematics, written language, and academic knowledge. Includes measures of basic skills, fluency, and application of academic skills.
12 tests evaluating oral language skills including listening comprehension, oral expression, phonetic coding, and speed of lexical access. Essential for comprehensive language assessment.
This website is a conceptual demonstration only. The Woodcock-Johnson IV is a professionally administered assessment that requires proper training and certification. For official testing, please consult with a qualified psychologist, educational diagnostician, or other trained professional.