Wednesday, March 10, 2010

Race and aggression among children

In a study of 404 eight-year-old boys and girls from Finland (one Finnish- and one Swedish-speaking group) Poland, and Chicago (one white and one black group) blacks were found to be more physically, verbally, and indirectly aggressive (passive-aggressive stuff) than the other groups. This was true for boys and girls, and regardless of whether self- or peer-estimations were used. (The black kids were inner-city).

The racial gap was larger for girls. This is consistent with the analysis of adults in the MIDUS study I described earlier.

According to this study, broad heritability for aggression among adults is around 70%.

(Karin Osterman, Kaj Bjorkqvist, Kirsti M.J. Lagerspetz, Ari Kaukiainen, L. Roweli Huesmann, and Adam Fraczek. 1994. Peer and Self-Estimated Aggression and Victimization in 8-Year-Old Children From Five Ethnic Groups. AGGRESSIVE BEHAVIOR, 20, 411-28.)

No comments:

Post a Comment

Meta-analysis of clinical trials: Eat walnuts

I am always looking for easy eating choices that are good for you. This new meta-analysis of 26 clinical trials looked to see if walnuts ma...