Report from the Working Group on Improving Public Policies and Programs Affecting Persons with Mental Retardation and Other Developmental Disabilities. Report from the Working Group on Improving Public Policies and Programs Affecting Persons with Mental Retardation and Other Developmental Disabilities : Table 19

12/01/1988

: Table 19

Re:I.Q. change associated with placement in community settings
Title:Changes in Levels of Mental Retardation: A Comparison of Institutional and Community Populations.
Authors:Kenneth D. Keith and L. Rene Ferdinand
Published:TASH Journal
Date:Spring, 1984.
Method:The programs studied were the Community Based Mental Retardation Services (CBMR) of Nebraska. In all, 198 persons served by the CBMR and 146 by the institution with varying degrees of mental retardation formed the sample. Individuals in the community received vocational services and generic community services within small residential settings. Institution residents received residential services in dormitory type buildings along with other services available at the institution. Comparisons between initial mental retardation classification and current classification using AAMD criteria were done in 4 ways.
Summary of Findings:Persons in the community tended to increase more in functioning level than did those who received services from an institution when using AAMD criteria. The groups subjected to statistical analysis were the moderately and severely retarded groups--the mildly and profoundly retarded subgroups were not subjected to analysis on account of sample size. The persons at the institution showed a greater decrease in functioning level. Regression to the mean effects may have affected the findings.