EFFECTS OF TASK DIFFICULTY, RACE OF ADMINISTRATOR, AND INSTRUCTIONS ON DIGIT-SYMBOL PERFORMANCE OF NEGROES

摘要

White and Negro experimenters administered digit-symbol tasks of three levels of difficulty to Southern male Negro college students. The task was described as a test of eye-hand coordination. On the most difficult task Ss worked more efficiently when tested by a white than when tested by a Negro." On the two easier codes the skin color of the administrator, had no effect. Next, two additional groups of Negro _Ss were tested by the same Negro and white experimenters on the most diffi-cult task only, but now the task was described as a test of intelligence, :rather than as a test of motor coordination. The effect of the I.Q. instructions was to elevate slightly performance with a Negro tester and to lower:scores markedly in the white-tester group.