Media type: E-Article Title: A Meta-Analysis of the Distinction between Reactive and Proactive Aggression in Children and Adolescents Contributor: Polman, Hanneke; Orobio de Castro, Bram; Koops, Willem; van Boxtel, Herman W.; Merk, Welmoet W. imprint: Springer Science and Business Media LLC, 2007 Published in: Journal of Abnormal Child Psychology Language: English DOI: 10.1007/s10802-007-9109-4 ISSN: 0091-0627; 1573-2835 Origination: Footnote: