Dr.Morimoto is curious as to whether exposing people to violent video games causes them to be more aggressive.He assigns half his participants to play a video game for five minutes and the other half to play for seven minutes.He finds that there is no relationship between playing the game longer and being more aggressive.What might be to blame for this null effect?
A)A weak manipulation
B)An insensitive measure
C)A reverse confound
D)Ceiling effect

Question

Quizplus · Accepted Answer

The null effect could be due to a weak manipulation, meaning that the manipulation (playing the game for different lengths of time) did not have a strong enough effect on the participants' level of aggression.

DrMorimoto Is Curious as to Whether Exposing People to Violent