Answer:
Human tendency to prejudge reality based on expectations.
Step-by-step explanation:
This is what the experiment proves in this case. In both escenarios, the students were observing the same films. However, each group had different interpretations of the events they were observing. This is a consequence of the prejudice that existed in the mind of the viewers even before watching the videos. Therefore, it serves as evidence of the human tendency to prejudge reality based on expectations.