Final answer:
Black students performed worse on verbal aptitude tests after being reminded of their race, supporting the concept of a self-fulfilling prophecy based on the stereotype of Black students being less intelligent.
Step-by-step explanation:
A self-fulfilling prophecy is an expectation held by a person that alters their behavior in a way that tends to make it true. When Black students were reminded of their race before taking verbal aptitude tests, they performed worse, which supports the idea of a self-fulfilling prophecy. This self-fulfilling prophecy is a result of the stereotype that Black students are less intelligent.