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Portal-Foster, C. W.1
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Mental Retardation in a Canadian Province: Elements of the Research Design. Report No. 1.
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Portal-Foster, C. W. – 1968
To study the psychological and social connotations of mental retardation in Canada, to identify demographic detail, and to develop research instruments and methodology, the proposed research studied the total population (110,000 persons) of Prince Edward Island. Subjects were randomly selected from ages 10 through 64. Prevalence tables are…
Descriptors: Demography, Exceptional Child Research, Incidence, Mental Retardation