Answer:
Correspondence bias or Fundamental Attribution error
Step-by-step explanation:
The Fundamental attribution error occurs when an individual has a tendency to explain the behaviors of other person on the basis of his personality trait or some internal factors while neglecting the external factors or the situational factors.
This error is self serving bias as in it the person explains his own behavior on the basis of situational factors unlike when he consider some one else other than his very own self.
Thus the case her with Kristen and the professor explains this error well as the professor without giving a chance to her to explain assumes based on the personality of kristen.