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r travis osborne
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Twins, black and white
R. Travis Osborne · Foundation for Human Understanding
286 sayfa · 1980
African Americans / Caucasian race / Intelligence levels / Twins / Afro-Americans
The Testing of Negro intelligence
R. Travis Osborne, Frank C. J. McGurk · Foundation for Human Understanding
402 sayfa · 1982
African Americans / Intelligence tests / Intelligence levels
Human variation
C. D. Darlington, Clyde E. Noble, R. Travis Osborne, Nathaniel Weyl · Academic Press
392 sayfa · 1978
Ethnopsychology / Age / Sex differences / Nature and nurture / Race
Racial Difference in Mental Growth and School Achievement (IAAEE monographs)
R. Travis Osborne · [International Association for the Advancement of Ethnology and Eugenics]
Sayfa sayısı yok · 1966
Kategori yok
Gender Defenders of the Sport Binary
Travis R. Bell, Anne C. Osborne · Lang Publishing, Incorporated, Peter
Sayfa sayısı yok · 2025
Recreation / LGBTQ athletics