Answers are grounded in this paper and cite their sources.
Lee. S. Shulman, Negro-White Differences in Employability, Self-Concept, and Related Measures among Adolescents Classified as Mentally Handicapped, The Journal of Negro Education, Vol. 37, No. 3, Race and Equality in American Education (Summer, 1968), pp. 227-240
No takes yet. Share an insight, caveat, or question.
Lee S. Shulman (1968) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: