title: Predictors and sequelae of trajectories of physical aggression in school-age boys and girls.
abstract: Teacher-rated trajectories of physical aggression in boys and girls from first through sixth grade were examined using data from the NICHD Study of Early Child Care and Youth Development. In separate analyses, four trajectories were identified in boys and three in girls. Higher levels of aggression in both boys and girls were related to greater sociodemographic risk and higher maternal harshness in the preschool years; lower levels of observed maternal sensitivity during early childhood also predicted higher trajectories of aggression among girls. Trajectory groups also differed on a range of social and academic adjustment outcomes in sixth grade, with the most aggressive children and even moderately aggressive children evidencing some difficulties in adjustment. Patterns and levels of aggression in boys and girls are discussed as are their predictors and consequences.
authors.affiliation: Department of Psychology, University of Pittsburgh, Pittsburgh, PA 15260, USA. sbcamp@pitt.edu
authors.forename: Susan B
authors.initials: SB
authors.lastname: Campbell
authors.forename: Susan
authors.initials: S
authors.lastname: Spieker
authors.forename: Nathan
authors.initials: N
authors.lastname: Vandergrift
authors.forename: Jay
authors.initials: J
authors.lastname: Belsky
authors.forename: Margaret
authors.initials: M
authors.lastname: Burchinal
mesh_terms: D000367:Age Factors; D000374:Aggression / Q000523:psychology*; D000704:Analysis of Variance; D002648:Child; D002653:Child Behavior Disorders / Q000503:physiopathology*; D002657:Child Development / Q000502:physiology*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007389:Internal-External Control; D008297:Male; D009034:Mother-Child Relations; D016487:Parenting; D012574:Schools; D012737:Sex Factors; D012917:Social Adjustment; D012919:Social Behavior; D012931:Social Environment; D011795:Surveys and Questionnaires