title: Continuity and change in social and physical aggression from middle childhood through early adolescence.
abstract: For a sample followed from age 9-13 (N=281), this investigation examined developmental trajectories for social and physical aggression as measured by teacher ratings. Trajectories for both forms of aggression were estimated first separately, then jointly. Mean levels of both social and physical aggression decreased over time for the overall sample, but with high variability of individual trajectories. Subgroups followed high trajectories for both social and physical aggression. Joint estimation yielded six trajectories: low stable, low increasers, medium increasers, medium desisters, high desisters, and high increasers. Membership in the high increaser group was predicted by male gender, unmarried parents, African American ethnicity, and maternal authoritarian and permissive parenting. Permissive parenting also predicted membership in the medium increaser group. This is one of the first studies to examine social aggression longitudinally across this developmental period. Though the results challenge the claim that social aggression is at its peak in early adolescence, the findings emphasize the importance of considering different developmental trajectories in trying to understand origins and outcomes of aggression.
authors.affiliation: School of Behavioural and Brain Sciences, The University of Texas at Dallas, Richardson, Texas 75083, USA. undrwd@utdallas.edu
authors.forename: Marion K
authors.initials: MK
authors.lastname: Underwood
authors.forename: Kurt J
authors.initials: KJ
authors.lastname: Beron
authors.forename: Lisa H
authors.initials: LH
authors.lastname: Rosen
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D000374:Aggression; D002648:Child; D002652:Child Behavior; D002657:Child Development; D005260:Female; D005544:Forecasting; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008960:Models, Psychological; D012044:Regression Analysis; D012307:Risk Factors; D012919:Social Behavior; D013334:Students / Q000523:psychology; D014481:United States; D014754:Violence
references.citation: J Clin Child Psychol. 2001 Dec;30(4):479-91
references.pmid: 11708236
references.citation: Psychol Methods. 2001 Mar;6(1):18-34
references.pmid: 11285809
references.citation: Child Dev. 1994 Apr;65(2 Spec No):649-65
references.pmid: 8013245
references.citation: J Am Acad Child Adolesc Psychiatry. 2008 Jan;47(1):86-93
references.pmid: 18174829
references.citation: Nebr Symp Motiv. 1998;45:75-141
references.pmid: 10752059
references.citation: Child Dev. 2003 Nov-Dec;74(6):1628-38
references.pmid: 14669886
references.citation: Dev Psychol. 1998 Jul;34(4):687-97
references.pmid: 9681260
references.citation: Pers Soc Psychol Rev. 2005;9(3):212-30
references.pmid: 16083361
references.citation: J Abnorm Child Psychol. 2000 Aug;28(4):327-37
references.pmid: 10949958
references.citation: Child Dev. 2008 Jan-Feb;79(1):13-29
references.pmid: 18269506
references.citation: Dev Psychol. 1997 Jul;33(4):589-600
references.pmid: 9232374
references.citation: Child Dev. 2005 Jan-Feb;76(1):24-39
references.pmid: 15693755
references.citation: Child Dev. 2007 Jul-Aug;78(4):1240-54
references.pmid: 17650136
references.citation: Dev Psychol. 1997 Jul;33(4):579-88
references.pmid: 9232373
references.citation: Psychol Rev. 1993 Oct;100(4):674-701
references.pmid: 8255953
references.citation: Monogr Soc Res Child Dev. 2004;69(4):vii, 1-129
references.pmid: 15667346
references.citation: Dev Psychopathol. 2007 Winter;19(1):37-55
references.pmid: 17241483
references.citation: J Abnorm Child Psychol. 1991 Jun;19(3):341-56
references.pmid: 1865049
references.citation: Child Dev. 1995 Jun;66(3):710-22
references.pmid: 7789197
references.citation: J Sch Psychol. 2007 Oct;45(5):523-547
references.pmid: 18836518
references.citation: Dev Psychopathol. 2007 Winter;19(1):187-203
references.pmid: 17241490
references.citation: Child Dev. 2003 Jan-Feb;74(1):205-20
references.pmid: 12625446
references.citation: J Abnorm Child Psychol. 2006 Apr;34(2):131-42
references.pmid: 16741683
references.citation: Child Dev. 2006 May-Jun;77(3):554-72
references.pmid: 16686788
references.citation: Child Dev. 1996 Oct;67(5):2317-27
references.pmid: 9022243
references.citation: Dev Psychol. 2003 Mar;39(2):222-45
references.pmid: 12661883
references.citation: Dev Psychol. 1997 Jul;33(4):601-9
references.pmid: 9232375
references.citation: J Abnorm Psychol. 1999 Nov;108(4):615-23
references.pmid: 10609426
references.citation: Child Dev. 2002 May-Jun;73(3):935-51
references.pmid: 12038561
references.citation: Child Dev. 1990 Apr;61(2):485-94
references.pmid: 2344784
references.citation: Child Dev. 2008 Nov-Dec;79(6):1907-27
references.pmid: 19037957
references.citation: Child Dev. 2008 Sep-Oct;79(5):1185-229
references.pmid: 18826521
references.citation: Aggress Behav. 2007 Jul-Aug;33(4):314-26
references.pmid: 17593562
references.citation: Aggress Behav. 2008 Jan-Feb;34(1):61-75
references.pmid: 17701991
references.citation: J Pediatr Psychol. 2002 Jan-Feb;27(1):19-25
references.pmid: 11726676
references.citation: Dev Psychopathol. 2005 Fall;17(4):1051-70
references.pmid: 16613430
references.citation: Child Dev. 2005 Jan-Feb;76(1):107-21
references.pmid: 15693761