Final answer:
The article 'Cross-cultural Study Strengthens Link Between Media Violence, Aggressive Behavior' states that the risk factor that substantially predicts aggressive behavior is combined risk.
Step-by-step explanation:
According to the article 'Cross-cultural Study Strengthens Link Between Media Violence, Aggressive Behavior,' the risk factor that substantially predicts aggressive behavior is combined risk. This means that when multiple risk factors exist together, such as exposure to media violence, peer delinquency, and neighborhood crime, the likelihood of exhibiting aggressive behavior increases.
Learn more about Risk factors for aggressive behavior