Final answer:
The study by Steele demonstrates the concept of stereotype threat, where African-American students' performance was negatively affected when a task was framed as a test of academic ability due to the activation of a negative stereotype.
Step-by-step explanation:
The results of the study by Steele illustrate the concept of stereotype threat. This phenomenon occurs when individuals who belong to a group that is subject to a negative stereotype experience anxiety in a situation where that stereotype is relevant, which can then lead to poorer performance. In the study, African-American college students performed worse than European-American students on a task when it was framed as a test of academic ability, thereby triggering the stereotype that African-Americans are less academically capable.
However, when the task was presented as just a laboratory problem-solving task, and thus the stereotype was not relevant, they performed equally to their European-American peers.