Passage Summary: A psychologist claims that because kids act out right after playing violent games, the games are teaching them that being aggressive is okay.

Conclusion: Violent video games cause young children to believe that aggressive behavior is acceptable.

Reasoning: Observations show that children act more aggressively immediately after playing video games that contain violent content.

Analysis: The psychologist is jumping from a short-term observation (immediate aggression) to a long-term internal state (believing aggression is acceptable). To strengthen this, we would want evidence that this behavior isn't just a temporary 'adrenaline rush' or that the children's attitudes actually change. Since this is an 'EXCEPT' question, look for the one answer choice that either does nothing for the argument or potentially suggests the aggression is caused by something else entirely, like the frustration of losing the game.