Dr. Sanderson is curious as to whether exposing people to violent video games causes them to be more aggressive. She assigns half her participants to play a violent video game for 5 minutes and the other half to play the same game for 25 minutes. Afterward, she has them play a board game and has a well-trained coder determine whether they are very aggressive in their playing style, barely aggressive, or not at all aggressive. She finds that a vast majority of her participants, regardless of group assignment, are rated as very aggressive. This outcome would be known as a/an:

The ceiling effect

Explanation:The ceiling effect refers to a situation in which an independent

variable (variable which is manipulated during an experiment) does no longer have an affect on a dependent variable (measured variable) This means a researcher can no longer count on his or her treatment as a cause of the results of what s(he) observing

"She finds that a vast majority of her participants, regardless of group assignment, are rated as very aggressive." The most of them acted agressive irrespective of group assignment. This means exposure to the violent movies was no longer an effect for the violence.

answer; repetitive thoughts; ritualistic behaviors;