Comparative psychological studies of Negroes and whites in the United States

In the areas of psychophysical, psychomotor, and intellectual functions as well as temperament traits, the problems of separating genetic and environmental contributions to performance have not been solved. In terms of the first 3 functions studies published between 1943-58 reveal a general superiority of whites in comparison with Negroes, though the differences are smaller among young children. Likenesses, on temperament traits appear more extensive than differences, although on certain tests Negroes have displayed a greater tendency toward neuroticism. (248 ref.)