Answer:
Outgroup homogeneity effect
Step-by-step explanation:
In social psychology, the term Outgroup homogeneity effect refers to the tendency to look members of outgroups (groups we don't belong to) as being more similar than members of ingroups, or groups we belong to.
In other words, this effect would be rephrased as 'they are alike and we are diverse'.
In this example, Jennifer is a student at UCLA and she says it's almost impossible to describe the average UCLA student because the diversity of them is amazing. On the other hand she says that describing an USC student is easy because they're all almost exactly the same. In other words, she is saying that USC students are alike, while UCLA students are diverse, she is a UCLA student so this would be an example of Outgroup homogeneity effect.