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Intellecutal disability

D Svendsen, F O Kinge
The relationships between occupation, education and intellectual ability at 30 years of age are analysed with particular reference to type of school attended at the age of 14 years. Data utilized are derived from interviews, psychological tests, local files of various schools, and journals of the National Services for Mentally Retarded. The study comprises all live births in the year 1940 of mothers then residing in Bergen, a total of 1570 persons. A sample was taken from this cohort after stratification according to type of school attended at age 14 years...
1979: Scandinavian Journal of Social Medicine
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