Answer:
fundamental attribution error.
Step-by-step explanation:
This theory in sociology also called the attribution effect states that people tend to over-attribute behavior of others to internal causes or traits.
The Professor makes this "fundamental attribution error" by failing to consider Nadiya's situation; meaning the situational information was insufficiently taken into account before reaching a conclusion (Probably Nadiya is under emotional distresse maybe she's grieving the death of her Farther).