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 11

12/01/1988

: Table 11

Re:Developmental change associated with community placement
Title:Differences in adaptive behavior of institutionalized and deinstitutionalized mentally retarded adults
Authors:D.B. Rosen
Published:Ann Arbor, MI: University Microfilms International (#DA8508127)
Date:1985
Method:Two year longitudinal study of randomly selected experimental and control groups each with 58 adult subjects each sampled from residents of Arkansas Children’s Colony at Booneville. Experimental group received community based residential and vocational services from an existing human services agency. Control group continued to receive residential and habilitation services in the state institution. Pre-test/post-test measures were gathered on three instruments, two adaptive behavior scales (“Becoming Independent” and “Street Survival Skills Questionnaire”) and an intelligence test (“Stanford Binet”). Complete pre-test and post-test data were obtained on 56 subjects in each group (i.e., 112 subjects altogether).
Summary of Findings:While there were no statistical differences between experimental and control groups at the time of selection, statistically significant differences were found to favor the experimental group in overall adaptive behavior as well as for each subscale (domain) of the Street Survival Skills Questionnaire at the end of two years. No significant differences were found in the assessed I.Q. of experimental or control group members either at pre-test or post-test. Subsequent analyses showed that the differences between groups in adaptive behavior gains could not be accounted for by differences between the groups at either pre-test or post-test in a range of variables including I.Q., age, sex, or years institutionalized prior to the study.