Testing a Bifactor Model of Relational and Physical Aggression in Early Childhood

Different approaches have been used to classify children as relationally aggressive, physically aggressive, or both relationally and physically aggressive (co-occurring aggression). The goal of the current study (N = 164, 50.9% boys, M _age = 47.75 months, SD = 7.37) was to test a bifactor model of aggression, which allows for aggression to be assessed dimensionally, and postulates a co-occurring aggression factor as well as unique relational and physical aggression factors, during early childhood. Aggression was measured using reliable observer and teacher reports of physical and relational aggression subscales. The two-factor model was an adequate fit to the data but the bifactor model was a significant improvement in model fit compared to the two-factor model. Alternative statistics for evaluating bifactor models were used in the current study. The measurement invariance (e.g., configural invariance, metric invariance, and scalar invariance) of the bifactor model was tested across gender and results from the bifactor model using teacher report showed that the model was invariant across gender. Lastly, the criterion validity of the model was examined by evaluating the relations between the bifactor model and observations of physical and relational aggression and results generally supported the validity of the bifactor model. Overall, results suggest that a bifactor model of aggression may be a useful method for studying aggression in early childhood.     

Prevention of Problem Behavior Through Annual Family Check-Ups in Early Childhood: Intervention Effects From Home to Early Elementary School

This randomized intervention trial examined the effects of yearly Family Check-Ups (FCUs) and tailored parent management training on parent report of problem behavior from age 2 to 5 years and teacher report of oppositional behavior at age 7.5. A multiethnic risk sample of 731 families in 3 distinct geographical settings who were receiving assistance from the Women, Infants, and Children Nutritional Supplement (WIC) program were randomly assigned to a yearly FCU. Intention to treat (ITT) analyses were used to examine overall intervention effects, and complier average causal effect (CACE) modeling was used to examine the effects of annual intervention engagement in the FCU on parent reports of child problem behavior from age 2 to 5 and teacher reports of problem behavior at age 7.5. ITT intervention effects were found regarding parent report at ages 2 to 5 and teacher report at age 7.5, indicating less growth in problem behavior for children in the intervention group than for those in the control group. CACE modeling of intervention engagement revealed that the effect sizes on parent- and teacher-reported problem behavior increased as a function of the number of yearly FCUs caregivers participated in. Findings suggest that embedding yearly FCU services within the context of social, health, and educational services in early childhood can potentially prevent early-onset trajectories of antisocial behavior. The increases in effect size with successive FCU engagement underscores the importance of a motivational approach to parenting support among high-risk families.     

Teacher and Parent Perceptions of Relational and Physical Aggression During Early Childhood

Although links have been found between parents’ and teachers’ (caregivers’) attitudes about aggressive behavior, their responses to aggressive behaviour in children, and those children’s own use of aggressive behaviour, most research has focused on primary and secondary school contexts and has examined the influence of parents and teachers separately. The current study explored both parents’ and teachers’ beliefs and intervention strategies for relational and physical aggression in early childhood settings. Teachers (N?=?18; Mage?=?34.8 years) and parents (N?=?68; Mage?=?32.2 years) were presented with vignettes portraying relational and physical aggression. Following each vignette, their perceptions of the seriousness of the act, empathy for the victim, likelihood to intervene, and intervention strategies used to respond to each vignette were assessed. Teachers were also interviewed about examples of aggression that have been seen in preschool age children. Results indicated that caregivers viewed relational compared to physical aggression as more normative, and had less empathy for, and were less likely to intervene in instances of relationally aggressive behaviour. They also recommended more passive intervention strategies towards relationally aggressive children and more direct strategies towards physically aggressive children. Interview responses indicated that teachers perceived the primary cause of aggression to be related to developmental characteristics of the child. Implications for how these findings about adult–child interactions impact the development of relational and physical aggression are discussed.     

Measuring Callous Unemotional Behaviors in Early Childhood: Factor Structure and the Prediction of Stable Aggression in Middle Childhood

This study sought to replicate the results of our earlier study, which were published in this Journal (Willoughby et. al 2011), that used mother-reported items from the Achenbach System of Empirically Based Assessment to develop a screening measure of callous unemotional (CU) behaviors for use with preschool-aged children. We further sought to extend those results by exploring the predictive validity of the CU measure with aggression trajectories in early-/mid- childhood. The current study involved secondary data analysis of the NICHD Study of Early Childhood and Youth Development (NICHD-SECCYD) dataset. Factor analyses included N?=?1,176 children who participated in the age 3 year assessment of the NICHD-SECCYD. Predictive models included N?=?1,081 children for whom four of the six possible teacher ratings of aggressive behavior were available from annual assessments spanning 1st–6th grades. Consistent with prior work, a three-factor confirmatory factor model, which differentiated CU from oppositional defiant (ODD) and attention deficit/hyperactive-impulsive (ADHD) behaviors, provided the best fit to the data. Among children with disorganized attachment status, the combination of high levels of mother-rated ODD behaviors and CU behaviors, was predictive of stable elevated levels of teacher-rated aggression from 1st–6th grade (predicted probability?=?0.38, compared with a base rate of 0.07). These results demonstrate that CU behaviors can be reliably measured by parent report in young children and are dissociable from more commonly assessed dimensions of disruptive behavior. Three-year-old children who exhibit elevated levels of ODD and CU behaviors, and who have disorganized attachments, are at increased risk for exhibiting elevated levels of aggression across middle childhood. Results are discussed from the perspective of early assessment and intervention.     

Forms of Aggression and Peer Victimization During Early Childhood: A Short-term Longitudinal Study

A multi-informant and multi-measure short-term longitudinal study of the association between subtypes of aggression and peer victimization was conducted in an early childhood sample (M = 44.36 months; SD = 11.07; N = 120). Observational and teacher report measures demonstrated appropriate reliability and validity as well as stability across an academic year. Concurrent associations revealed that observed relational aggression was uniquely associated with teacher reported relational victimization and observed physical aggression was uniquely associated with teacher reported physical victimization. Prospective findings indicated that observed relational aggression predicted increases in teacher reported relational victimization for girls only, controlling for the variance associated with physical aggression, prosocial behavior, physical victimization, and gender. Peer rejection partially mediated the association between observed relational aggression at time 1 and teacher reported relational victimization at time 2. Ways in which these and other prospective findings extend the extant literature are discussed.     

Functions of Aggression and Peer Victimization in Elementary School Children: the Mediating Role of Social Preference

This study examined whether social preference was a mechanism that explained the relation between proactive and reactive aggression and peer victimization. Participants were 494 children in grades 2–5. Proactive and reactive aggression was assessed via a self-report measure and indices of social preference and peer victimization were assessed via a peer nomination inventory. Data was collected during the fall and spring of two academic years. The relations among aggression, social preference, and peer victimization varied as a function of aggression and gender. For girls, reactive aggression was a significant negative predictor of social preference. Findings also revealed social preference mediated the relation between reactive aggression and peer victimization for girls. This pathway did not hold for boys. There was some evidence that proactive aggression was negatively associated with peer victimization, but only for girls. Findings from the current study suggest social preference may be a key mechanism through which reactive aggression is associated with future victimization for girls. Boys’ aggression was not related to subsequent peer victimization. Future research and intervention efforts should consider gender differences and the function of aggression when investigating children’s peer victimization experiences.     

Associations of Maternal Prenatal Smoking with Early Childhood Physical Aggression,Hyperactivity-Impulsivity,and Their Co-Occurrence

This study investigated associations between maternal prenatal smoking and physical aggression (PA), hyperactivity-impulsivity (HI) and co-occurring PA and HI between ages 17 and 42 months in a population sample of children born in Québec (Canada) in 1997/1998 (N=1745). Trajectory model estimation showed three distinct developmental patterns for PA and four for HI. Multinomial regression analyses showed that prenatal smoking significantly predicted children’s likelihood to follow different PA trajectories beyond the effects of other perinatal factors, parental psychopathology, family functioning and parenting, and socio-economic factors. However, prenatal smoking was not a significant predictor of HI in a model with the same control variables. Further multinomial regression analyses showed that, together with gender, presence of siblings and maternal hostile reactive parenting, prenatal smoking independently predicted co-occurring high PA and high HI compared to low levels of both behaviors, to high PA alone, and to high HI alone. These results show that maternal prenatal smoking predicts multiple behavior regulation problems in early childhood.     

Executive Functioning and Non-Verbal Intelligence as Predictors of Bullying in Early Elementary School

Executive function and intelligence are negatively associated with aggression, yet the role of executive function has rarely been examined in the context of school bullying. We studied whether different domains of executive function and non-verbal intelligence are associated with bullying involvement in early elementary school. The association was examined in a population-based sample of 1,377 children. At age 4 years we assessed problems in inhibition, shifting, emotional control, working memory and planning/organization, using a validated parental questionnaire (the BRIEF-P). Additionally, we determined child non-verbal IQ at age 6 years. Bullying involvement as a bully, victim or a bully-victim in grades 1–2 of elementary school (mean age 7.7 years) was measured using a peer-nomination procedure. Individual bullying scores were based on the ratings by multiple peers (on average 20 classmates). Analyses were adjusted for various child and maternal socio-demographic and psychosocial covariates. Child score for inhibition problems was associated with the risk of being a bully (OR per SD?=?1.35, 95%CI: 1.09–1.66), victim (OR per SD?=?1.21, 95%CI: 1.00–1.45) and a bully-victim (OR per SD?=?1.55, 95%CI: 1.10–2.17). Children with higher non-verbal IQ were less likely to be victims (OR?=?0.99, 95%CI: 0.98–1.00) and bully-victims (OR?=?95%CI: 0.93–0.98, respectively). In conclusion, our study showed that peer interactions may be to some extent influenced by children’s executive function and non-verbal intelligence. Future studies should examine whether training executive function skills can reduce bullying involvement and improve the quality of peer relationships.     

School Interventions for Aggression

The scope and nature of aggressive behavior in the schools suggests that physical and verbal assault are frequent and significant problems in educational settings. Interventions derived from contingency management and self-management perspectives of aggression are discussed. Research studies representative of each type of intervention strategy are also identified. Issues in the selection of treatment strategies are noted.     

Transactional Processes Among Childhood Maltreatment,Self-Control and Aggression in Early Adolescence: Disentangling Between- and Within-Person Associations

Research on Child and Adolescent Psychopathology - Previous research has investigated the associations among childhood maltreatment, self-control, and aggression among adolescents without...     

Math Anxiety,Working Memory,and Math Achievement in Early Elementary School

Although math anxiety is associated with poor mathematical knowledge and low course grades (Ashcraft & Krause, 2007 Ashcraft , M. H. , & Krause , J. A. ( 2007 ). Working memory, math performance, and math anxiety . Psychonomic Bulletin & Review , 14 , 243 – 248 .[Crossref], [PubMed], [Web of Science ®] , [Google Scholar]), research establishing a connection between math anxiety and math achievement has generally been conducted with young adults, ignoring the emergence of math anxiety in young children. In the current study, we explored whether math anxiety relates to young children's math achievement. One hundred and fifty-four first- and second-grade children (69 boys, 85 girls) were given a measure of math achievement and working memory (WM). Several days later, children's math anxiety was assessed using a newly developed scale. Paralleling work with adults (Beilock, 2008 Beilock , S. L. ( 2008 ). Math performance in stressful situations . Current Directions in Psychological Science , 17 , 339 – 343 .[Crossref], [Web of Science ®] , [Google Scholar]), we found a negative relation between math anxiety and math achievement for children who were higher but not lower in WM. High-WM individuals tend to rely on WM-intensive solution strategies, and these strategies are likely disrupted when WM capacity is co-opted by math anxiety. We argue that early identification and treatment of math anxieties is important because these early anxieties may snowball and eventually lead students with the highest potential (i.e., those with higher WM) to avoid math courses and math-related career choices.     

Interactions between Callous Unemotional Behaviors and Executive Function in Early Childhood Predict later Aggression and Lower Peer-liking in Late-childhood

Callous unemotional (CU) behaviors are linked to aggression, behavior problems, and difficulties in peer relationships in children and adolescents. However, few studies have examined whether early childhood CU behaviors predict aggression or peer-rejection during late-childhood or potential moderation of this relationship by executive function. The current study examined whether the interaction of CU behaviors and executive function in early childhood predicted different forms of aggression in late-childhood, including proactive, reactive, and relational aggression, as well as how much children were liked by their peers. Data from cross-informant reports and multiple observational tasks were collected from a high-risk sample (N = 240; female = 118) at ages 3 and 10 years old. Parent reports of CU behaviors at age 3 predicted teacher reports of reactive, proactive, and relational aggression, as well as lower peer-liking at age 10. Moderation analysis showed that specifically at high levels of CU behaviors and low levels of observed executive function, children were reported by teachers as showing greater reactive and proactive aggression, and were less-liked by peers. Findings demonstrate that early childhood CU behaviors and executive function have unique main and interactive effects on both later aggression and lower peer-liking even when taking into account stability in behavior problems over time. By elucidating how CU behaviors and deficits in executive function potentiate each other during early childhood, we can better characterize the emergence of severe and persistent behavior and interpersonal difficulties across development.     

Multilevel Correlates of Childhood Physical Aggression and Prosocial Behavior

The study identified independent individual, family, and neighborhood correlates of children's physical aggression and prosocial behavior. Participants were 2,745 2–11-year olds nested in 1,982 families, which were themselves nested in 96 Canadian neighborhoods. Hierarchical linear modeling showed that the total variation explained by the three-level model was 28.03% for physical aggression and 17.57% for prosocial behavior. For both childhood behaviors, approximately 66% of this explained variance was between individuals and up to 30% was between families. The smallest amount of observed variation was between neighborhoods. Significant individual-level predictors common to both childhood behaviors were child's sex and maternal hostility toward the target child. Specifically, boys had more mother-reported physical aggression and less prosocial behavior. Children who experienced greater-than-average maternal hostility (compared to siblings) were more physically aggressive and less prosocial. At the family level, significant common predictors were mother depressed mood and punitive parenting. Children had higher levels of physical aggression and lower levels of prosocial behavior in families where mothers had greater depressed mood and used more punitive parenting practices. At the neighborhood level, greater perceived problems and lower poverty level were associated with higher levels of physical aggression. Results are discussed with reference to past and future studies of multilevel effects on children's socialization.     

Enhancing Social Responsibility and Prosocial Leadership to Prevent Aggression,Peer Victimization,and Emotional Problems in Elementary School Children

Testing the theories that form the basis of prevention programs can enhance our understanding of behavioral change and inform the development, coordination, and adaptation of prevention programs. However, theories of change showing the linkages from intervention program components to risk or protective factors to desired outcomes across time are rarely specified or tested. In this 2‐year longitudinal study, we test the theory that increases in two protective factors (i.e., children's prosocial leadership and their teachers’ expectations of social responsibility) targeted by the WITS Programs (Walk Away, Ignore, Talk it Out, and Seek Help) would be associated with declines in peer victimization, aggression, and emotional problems. Participants included Canadian students, in grades 1–4 at baseline (n = 1329) and their parents and teachers. Consistent with our theory of change, variability in program implementation (adherence and integration) and in children's use of program skills (child responsiveness) are related to increases in both protective factors. Increases in these protective factors are associated with subsequent declines in children's aggression, victimization, and emotional problems. We discuss how enhancement of these protective factors may operate to improve child outcomes and the need for theory‐based research to refine and improve the effectiveness of intervention strategies and to improve program scale‐up.     

童年晚期至青少年早期攻击和同伴侵害的关系:交叉滞后研究

采用整群抽样法抽取2178名小学生为被试（平均年龄11.05±0.69岁,男生1132人）自5年级追踪至8年级,通过纵向交叉滞后模型对攻击与同伴侵害间的关系进行考察。结果发现,各年级关系攻击均可预测之后的关系侵害,7年级身体攻击预测8年级身体侵害,此外6年级关系侵害经历对7年级关系攻击具有预测作用。攻击与同伴侵害间的纵向联系不存在性别差异。这些结果表明,童年晚期至青少年早期攻击与同伴侵害之间总体上符合连续性社交过程模型,即攻击对随后的同伴侵害具有更明显预测作用,但在小学升初中的学校过渡阶段关系侵害预测随后的关系攻击,部分支持两者间存在双向关系。该结果提示需关注儿童青少年的攻击与同伴侵害经历,采取措施避免其陷入攻击与同伴侵害间的恶性循环之中。     

Successful Development: Childhood Antecedents of Adaptive Psychosocial Functioning in Adulthood

The study was part of the Jyväskylä Longitudinal Study of Personality and Social Development. Data on developmental background for 131 women and 130 men consisted of variables for (1) emotion regulation at age 8, (2) cognitive–motivational orientation at age 14, and (3) family circumstances, and data on adult outcomes for variables concerning psychosocial functioning at age 36. Links between the childhood and adulthood variables were investigated using the LISREL model which consisted of two parts, the measurement model and the structural equation model. Two correlating latent factors emerged from adult outcomes for men and women: Social Functioning, consisting of external criteria for successful development (stability of career line, controlled drinking, socialization) and Psychological Functioning, consisting of internal criteria (self-esteem and psychological well-being). Only Social Functioning was explained by developmental background. High emotion regulation in childhood was a more robust antecedent of good social functioning in men than in women.