Comparison of Ability-Achievement Discrepancies Among the Wechsler Individual Achievement Test, Woodcock-Johnson-Revised Tests of Achievement, and Wechsler Intelligence Scale for Children-Third Edition in a Sample of Students Referred for Evaluation of Learning Disabilities

摘要: Under current IDEA definitions, a significant or severe discrepancy between intellectual ability and academic achievement is the primary criterion by which student may be classified as having specific learning disability. By recommendation of Work Group on Measurement Issues in Assessment Learning Disabilities (1984), most common method determining such to calculate an individual's score individually administered intelligence test his/her using regression-based formula correct for regression IQ achievement. Because two previous studies suggested that Wechsler Individual Achievement Test (WIAT) produced lower scores areas reading, mathematics, writing than Woodcock-Johnson-Revised Tests (WJ-R ACH), main focus study was determine whether tests identify discrepancies consistently. 1 Data collected anonymously from files 79 students who had been WIAT, WJ-R ACH, Intelligence Scale Children-Third Edition (WISC-III) part routine initial reevaluations. Correlations, differences mean standard scores, agreement statistics were calculated. Discrepancies Between WISC-III, 2 Correlations among WIAT ACH subtests composites purporting measure similar constructs yielded results. However, consistent with research, significantly reading decoding, comprehension, composite, math reasoning, written expression. The Dictation subtest Spelling subtest. Furthermore, more Reading Comprehension, Written Expression, Writing Composite. clinical implications, limitations future directions are discussed. 3 Acknowledgements I would like thank my committee members, Dr. Gary Canivez, chairperson, Michael Havey, Christine McCormick their time suggestions. My sincere thanks Carl Hall, Anne Lewallen, Cynthia Hunt, Sonja Castle professional concerns necessitated this research generosity providing data study. Finally, express Brian Samuel Cole patience, love, assistance throughout journey. Title Page Abstract Table