Socioeconomic Bias in the Diagnosis of Mental Retardation

Harper P. A. Preventive pediatrics. New York: Appleton-Century-Crofts, 1962.

Heber R. Epidemiology of mental retardation. Springfield, Ill.: Charles C Thomas, 1970.

Hollingshead A. B. , & Redlich F. C. Social class and mental illness: A community study. New York: John Wiley, 1958.

Jensen A. R. A theory of primary and secondary familial mental retardation. In Ellis N. R. (Ed.), International review of research in mental retardation. New York: Academic Press, 1970.

Kushlick A. Assessing the size of the problem of sub-normality. In Meade J. E. & Parker A. S. (Eds.), Genetic and environmental factors in human ability. New York: Plenum Press, 1966.

Tyler L. E. The psychology of human differences. (3rd ed.) New York: Appleton-Century-Crofts, 1965.