States' definitions and procedures for identifying children with mental retardation: comparison over nine years

Results of a survey of state departments of public instruction regarding eligibility criteria for the identification of children with mental retardation were reported and compared to those obtained in a review of state guidelines in 1981-1982 and 1985-1986. Results indicated that states continue to vary widely in their definitions and procedures for identifying children with mental retardation. However, over the 9 years covered by the study, more and more states mentioned or specified each of the following types of assessments: IQ, adaptive behavior, and academic achievement.