How would these researchers have to redesign their study if they wanted to suggest that watching violet videos CAUSES aggression?
A group of researchers conducted a study to see whether children's aggression was associated with amount of time spent watching violent videos. They found that children who spent more time watching violent videos scored higher on a rating scale of aggression. The researchers concluded that there was an association between watching violent videos and aggression, but they could NOT say if watching violent videos causes aggression. How would these researchers have to redesign their study if they wanted to suggest that watching violet videos CAUSES aggression?
A) They would need to randomly assigned some participants to watch violent videos and others to watch nonviolent videos
B) They would need to include more children who watched nonviolent videos in their original sample
C) They would need to use a more objective measure of aggression
D) All of the above
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