The Woodcock-Johnson Psychoeducational Battery is a comprehensive, individually administered assessment system widely used in psychodiagnostics to evaluate cognitive abilities, academic achievement, and oral language skills. Developed by Richard W. Woodcock and Mary E. Bonner Johnson, this battery is grounded in the Cattell-Horn-Carroll (CHC) theory of cognitive abilities, which provides a robust theoretical framework for understanding human intelligence. The test is designed to assess a broad range of intellectual functions and academic competencies across the lifespan, from early childhood to adulthood, making it highly versatile in educational and clinical settings. The battery is typically divided into three main components: the Tests of Cognitive Abilities, the Tests of Achievement, and the Tests of Oral Language. The cognitive section measures various aspects of intellectual functioning, including fluid reasoning, crystallized intelligence, processing speed, short-term memory, long-term retrieval, visual-spatial thinking,