Which type of aggression is more commonly influenced by genetics, according to Brendgen's findings?

• A. Social aggression
• B. Physical aggression
• C. Emotional aggression
• D. Cognitive aggression

Answer: (B)

Brendgen's research indicates that physical aggression is more commonly influenced by genetics compared to the other types of aggression. Genetic factors can play a significant role in the development of behaviors such as physical aggression, which may include actions like hitting or pushing. This type of aggression is often observed in early childhood as a more straightforward expression of frustration or anger, making it relatively easier to associate with biological underpinnings.

Social aggression, on the other hand, involves behaviors aimed at damaging relationships or social status and is often influenced more by environmental factors, such as social learning and peer interactions. Emotional aggression, which can be characterized by impulsive reactions rooted in emotional states, may also be more shaped by learned behaviors than by genetic factors. Lastly, cognitive aggression typically pertains to the psychological aspects of aggression rather than physical actions and doesn't directly correlate with innate genetic influences.

The findings suggest a stronger hereditary component in physical aggression, which sets it apart from these other forms, emphasizing the role of biology in aggression-related behaviors.