Question

Dave believes all college professors are irritable, impatient, and uninterested in whether students learn. his belief is an example of _______________.

Answer 1

The correct answer should be stereotype.
It is a common stereotype about professors that they are often irritable, that they don't really care whether their students are going to learn anything, and that they are quick of temper. This is why Dave thinks that all professors are like that, even though that is obviously not true.