A Researcher Collects Data on the Amount of Time Children

A researcher collects data on the amount of time children spend watching violent cartoons. He compares the behavior of a group of children who watch a lot of violent cartoons (Group 1) with a group of children who do not (Group 2) . He finds that children in Group 1 are more aggressive on the playground than the children in Group 2. What can the researcher conclude?

A) There is a relationship between watching violent cartoons and aggressive behavior.
B) Watching violent cartoons causes aggressive behavior.
C) Aggressive behavior leads children to watch violent cartoons because they are reinforcing.
D) Parents who reward aggressive behavior also allow their children to watch violent cartoons.