Does participating in combat sports (like martial arts and wrestling) or playing contact sports (like football and hockey) influence aggression outside of the sport? According to a study by Zander Parkinson '13, the answer might be, yes. "I found that among male adolescents there was a significant association between activity level and increased likelihood of getting into a physical fight," Parkinson explained during the Quantitative Analysis Center's Fall Poster Session Dec. 9. "Adolescents who played an active sport three or more times a week were significantly more likely to get into a physical fight than non-active adolescents who played an…