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ERIC Number: EJ971378
Record Type: Journal
Publication Date: 2012
Pages: 8
Abstractor: As Provided
Reference Count: 32
ISSN: ISSN-0022-2194
The Impact of the Flynn Effect on LD Diagnoses in Special Education
Kanaya, Tomoe; Ceci, Stephen
Journal of Learning Disabilities, v45 n4 p319-326 Jul-Aug 2012
Because of the Flynn effect, IQ scores rise as a test norm ages but drop on the introduction of a newly revised test norm. The purpose of the current study was to determine the impact of the Flynn effect on learning disability (LD) diagnoses, the most prevalent special education diagnosis in the United States. Using a longitudinal sample of 875 school children who were initially diagnosed with LD on the "Wechsler Intelligence Scale for Children-Revised" (WISC-R), children experienced a significant decline in IQ when retested on the third edition of the WISC (WISC-III) compared to peers who were tested on the WISC-R twice. Furthermore, results from logistic regression analyses revealed that the probability of a rediagnosis of LD on reevaluation significantly decreased, in part, because of this decline on the WISC-III. These results are discussed in terms of their implications for both basic research and educational policy. (Contains 3 tables.)
SAGE Publications and Hammill Institute on Disabilities. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Research
Education Level: Elementary Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Location: United States
Identifiers - Assessments and Surveys: Wechsler Intelligence Scale for Children