Answer: Stereotype threat
Explanation:
Stereotype threat is defined as unpleasant circumstance for a person who feels that they would have to follows or will be bounded by the stereotypes of their social group.
According to the question, Courtney's performance can be disturbed due to stereotype threat because she knows that it is considered that girls are not good at science and math as compared to boys socially. Therefrom, she might end up believing this stereotype and not perform well in physics class.
