3～4岁儿童攻击行为发展的追踪研究

对163名幼儿园小班儿童进行追踪观察,考察3-4岁期间儿童攻击行为的特点、发展模式及稳定性。主要获得以下结果：儿童最普遍的攻击形式是身体攻击．言语攻击和间接攻击的发生率较低;大多数攻击行为属于主动性攻击和工具性攻击;男孩的攻击行为总体上多于女孩．但女孩的间接攻击多于男孩;儿童的攻击性在3-4岁之间无显著变化,但敌意性攻击存在随年龄增长而增加的趋势;3-4岁儿童攻击性的个别差异已具有明显的稳定性。     

Do Friends’ Characteristics Moderate the Prospective Links between Peer Victimization and Reactive and Proactive Aggression?

This study examined (a) the predictive link between peer victimization and children’s reactive and proactive aggression, and (b) the potential moderating effect of reciprocal friends’ reactive and proactive aggression in this context. The study also examined whether these potential moderating effects of friends’ characteristics were stronger with respect to more recent friends compared to previous friends. Based on a convenience sample of 658 twin children (326 boys and 332 girls) assessed in kindergarten and first grade, the results showed that peer victimization uniquely predicted an increase in children’s teacher-rated reactive aggression, but not teacher-rated proactive aggression. The relation of peer victimization to increased reactive aggression was, however, moderated by recent ˉ not previous ˉ reciprocal friends’ similarly aggressive characteristics. These findings, however, tended to be mostly true for boys, but not for girls. The findings are discussed in terms of their theoretical and practical implications for victimized children’s risk of displaying reactive and proactive aggressive behaviors. This research was made possible by grants from the Social Sciences and Humanities Research Council of Canada, the Fonds Concerté pour l’Aide à la Recherche, the Fonds Québécois de la Recherche sur la Société et la Culture, the Canadian Institutes of Health Research, and the Fonds de Recherche en Santé du Québec.     

The effect of religiosity and ethnic origin on direct and indirect aggression among males and females: Some Israeli findings

Israeli society is characterized by significant internal divisions. Two of the most salient of these divisions within the Jewish population relate to (1) religiosity (religious vs. secular Jews) and (2) ethnic origin (Eastern [Asian and North African] vs. Western [European and American]). The aim of this study was to assess the effects of these social divisions on aggressive behavior and victimization to aggression among Israeli children. Three types of aggressive behavior (physical, verbal, and indirect) were investigated by means of peer estimation. The sample (N = 630) was composed of three age groups (8‐, 11‐, and 15‐year‐olds). The findings indicate that in general, secular respondents scored higher on aggressive behavior and victimization than their religious counterparts, and respondents of Eastern origin scored higher than those of Israeli or Western origin. The effect of both religiosity and ethnic origin was stronger among girls than among boys. Ethnic origin had no effect on any of the boys’ measures but did affect these measures among girls. Among boys, religiosity affected verbal and indirect aggression and victimization. Among girls, indirect aggression and victimization, as well as victimization to physical aggression, were affected by religiosity. As to the effect of age, similar to previous studies, in all types of aggression and victimization, the 11‐year‐olds scored highest and the 15‐year‐olds scored lowest. Differences between the three types of aggression and victimization, as well as various interactions between the variables, are reported. The results are discussed within the wider context of the role of religiosity and ethnic origin in Israeli society. Aggr. Behav. 28:281–298, 2002. © 2002 Wiley‐Liss, Inc.     

The goal to be accepted by friends as underlying function of overt aggressive behaviour in immigrant adolescents

This study investigated (1) to what extent the goal to be accepted by friends is an underlying function of overt aggressive behavior in adolescents, and (2) whether this function is more predictive than reactive aggression for overt aggressive behavior in first and second generation immigrants compared with natives. The sample comprised 339 native Austrians (51.6% girls), 126 first generation immigrants (48.4% girls), and 175 second generation immigrants (54.3% girls) aged 14 to 19 (M = 15.61). Data were collected via self-assessments. Multiple group latent means and covariance structures (MACS) models revealed that the goal to be accepted by friends was a stronger predictor than reactive aggression for overt aggressive behavior in first generation immigrants compared with second generation immigrants and natives. Furthermore, gender moderated these associations. The goal to be accepted by friends was a very strong predictor of overt aggressive behavior in first generation immigrant boys, but not in first generation immigrant girls. Results are discussed regarding the process of acculturation in first generation immigrant youth.     

Peer Victimization during Middle Childhood as a Marker of Attenuated Risk for Adult Arrest

This longitudinal investigation examined interactions between aggression and peer victimization during middle childhood in the prediction of arrest through the adult years for 388 (198 boys, 190 girls) study participants. As part of an ongoing multisite study (i.e., Child Development Project), peer victimization and aggression were assessed via a peer nomination inventory in middle childhood, and juvenile and adult arrest histories were assessed via a self-report questionnaire as well as review of court records. Early aggression was linked to later arrest but only for those youths who were rarely victimized by peers. Although past investigators have viewed youths who are both aggressive and victimized as a high-risk subgroup, our findings suggest that the psychological and behavioral attributes of these children may mitigate trajectories toward antisocial problems.     

Exposure to maternal vs. paternal partner violence,PTSD, and aggression in adolescent girls and boys

Adolescents who witness interparental violence (IPV) are at increased risk for perpetrating aggressive acts. They are also at risk for post‐traumatic stress disorder (PTSD). In this study, we examined the relation between exposure to maternal vs. paternal physical IPV and adolescent girls' and boys' aggressive behavior toward mothers, fathers, friends, and romantic partners. We also assessed the influence of PTSD (as assessed by the Diagnostic Interview for Children and Adolescents‐IV (DICA‐IV)) on the relation between exposure to IPV and aggressive behavior. Participants were 63 girls and 49 boys, ages 13–18, consecutively admitted to a youth correctional facility or assessment facility designated to serve aggressive and delinquent youth. Structural equation modeling was used to estimate unique relations between exposure to maternal vs. paternal IPV and youth aggression in relationships. Girls who observed their mothers' aggressive behavior toward partners were significantly more aggressive toward friends. Similarly, boys who witnessed their fathers' aggression were significantly more aggressive toward friends. Adolescent girls and boys who observed aggression by mothers toward partners reported significantly higher levels of aggression toward their romantic partners. Approximately one third of our sample met PTSD criteria; the relation between exposure to parental IPV and aggression was stronger for individuals who met criteria for PTSD. The implications of understanding the relations between parents' and their daughters' and sons' use of aggression are discussed within the context of providing support for families in breaking intergenerational patterns of violence and aggression. Aggr. Behav. 32:385–395, 2006. © 2006 Wiley‐Liss, Inc.     

Relational aggression in young adults' friendships and romantic relationships

This study examines young adults' experiences with relational aggression among friends and romantic partners. Results suggest that relational aggression occurs more frequently among romantic partners than among friends. A gender difference in relational aggression emerged in the romantic context (females were more aggressive), but no gender difference was found in the friendship context. Relationship exclusivity and normative beliefs about relational aggression predicted aggressive behavior across contexts, while rumination predicted relational aggression in the romantic context but not in the friendship context. Implications of these findings, as well as directions for future research, are discussed.     

The role of proactive and reactive aggression in the formation and development of boys' friendships

This study tested the hypothesis that friends are more similar in proactive aggression than in reactive aggression. Interpersonal processes that may account for this similarity (i.e., selection and mutual influence) were also examined. In the fall and spring of the school year, the friendships of 185 4th-, 5th-, and 6th-grade boys were identified. Proactive and reactive aggressive behavior were assessed with a teacher-rating instrument for each boy. The results support the general hypothesis and suggest that proactively aggressive boys tend to select proactively aggressive peers as friends; however, mutual influence between stable friends does not appear to account for similarity. These findings are discussed within the framework of G. R. Patterson, J. B. Reid, and T. J. Dishion's (1992) theory of antisocial behavior.     

Who victimizes whom and who defends whom? A multivariate social network analysis of victimization,aggression, and defending in early childhood

The aim of this research was to investigate the interplay between victim‐aggressor relationships and defending relationships in early childhood to test the proposition that young aggressors are less selective than older children in their choice of vulnerable targets. Cross‐sectional multivariate statistical social network analyses (Exponential Random Graph Models) for a sample of 177 preschoolers from seven classes, 5‐ to 7‐years‐old, revealed that boys were more aggressive than girls, toward both boys and girls, whereas defending relationships were most often same‐sex. There was significant reciprocity in aggression, indicating that it was more often bidirectional rather than unidirectional. In addition, aggressors clearly defended each other when they shared their targets of aggression, whereas a marginally significant trend appeared for defending between victims who were victimized by the same aggressors. Furthermore, teacher‐rated dominance was positively associated with children's involvement in both aggression and victimization, and teacher‐rated insecurity was associated with less aggression, but not with victimization. These findings suggest that those who are reported as being victimized may retaliate, or be aggressive themselves, and do not display some of the vulnerabilities reported among older groups of victims. The findings are in line with the proposition that young aggressors are less strategic than older children in targeting vulnerable victims. The network approach to peer victimization and defending contributes to understanding the social processes facilitating the development of aggression in early childhood.     

Cognitive competencies and aggressive behavior: A developmental study

A number of studies have demonstrated that increased socially related cognitive skills are associated with decreases in aggressive behavior. However, the link between aggression and intelligence or academic skills is less evident. While some research indicates that poor academic performance is related to aggression, it is unclear which components of intellectual ability and performance are critical to the management of aggressive behaviors. In two independent longitudinal studies of elementary school-age children, the relationship among several aspects of cognitive competence and several aspects of aggressive behavior were examined. The results of the first study showed that aggressive behavior observed in kindergarten children was more closely related to academic performance in the first and second grades than to general cognitive ability (IQ). The results of the second study, a comprehensive three-year investigation of upper elementary school-age children, indicated that teachers' assessments of aggression and parents' ratings of cruelty were consistent over time for boys, but not for girls. The intercorrelations among aggression measures within each of the three years also revealed stable sex differences. Boys identified as aggressive in the classroom were more likely to be perceived as aggressive, cruel, and/or delinquent at home, but for girls, there was little correlation between aggression at school and in the home. The analyses relating measures of cognitive functioning to indices of aggressive behavior made clear the importance of discriminating among various facets of these psychological constructs. IQ had a negligible relationship with aggression and a weak inverse relationship to delinquency. An overall index of cognitive functioning was a somewhat more consistent negative correlate of aggression, cruelty, and delinquency, especially for boys. A similar pattern was found for the correlates of academic performance. Academic disability was strongly related to delinquency in boys, and to a lesser degree to aggression in boys. Of the several cognitively related factors that were explored, Low Need Achievement manifested the strongest and most consistent relationships with the different facets of aggression and antisocial behavior, especially in boys. The implications of these results for psychological interventions in the school are discussed.     

Differential associations between maternal and paternal parenting and physical and relational aggression

A large number of studies have demonstrated that negative parenting is associated with greater levels of aggression (relational and physical) among school‐age children in Western cultures. However, the investigation of this association for children in non‐Western cultures is still in its infancy. The present study examines the associations between maternal and paternal parenting behaviours (conflict with the child, physical aggression toward the child and relational aggression toward the child) and forms of aggression, and explores gender differences in these associations among Japanese boys and girls. The participants were 130 fifth and sixth graders (age range: 10 to 12). Children reported maternal and paternal parenting behaviours, and classroom teachers assessed children's relational and physical aggression. Results show that boys and girls had more conflict, more relationally aggressive parenting experiences and more intimate relationships with their mothers than their fathers. Further, after controlling for grade and gender, greater maternal (but not paternal) relational aggression was associated with more peer‐oriented relational aggression for boys only and more peer‐oriented physical aggression for boys and girls. Greater paternal (but not maternal) conflict was predictive of more peer‐oriented physical aggression for boys and girls. The direction and strength of the associations between parenting behaviours and forms of aggression may be contingent upon the gender of the parent and the child. The findings are discussed from cultural, developmental and social perspectives, and implications for future research are discussed.     

The relationship between aggression in children and locus of control beliefs

Gender differences are evident in the etiology and maintenance of aggressive behavior (which is on the increase for both male and female youths), but the explanatory models that have been proposed, including social learning theory and information processing models, are more appropriate for boys than for girls. In an attempt to elucidate processes underlying aggression, particularly for girls, the authors explored locus of control as a cognitive variable possibly related to aggressive behavior. The relationships between teacher-reported aggression and 3 types of locus of control (internal, powerful other, and unknown) for success and failure experiences were investigated. For girls, aggressive behavior was positively related to internal and unknown locus of control. In contrast, boys' aggressive behavior was unrelated to internal locus of control beliefs and negatively related to external locus of control beliefs. Possible explanatory mechanisms for the relationship between locus of control beliefs and aggression are discussed. The present study contributes to the understanding of aggression in girls and points to different processes underlying girls' and boys' aggression.     

Applicability of olweu' aggression inventory in a sample of chinese primary school children

A sample of Chinese children in Grade 4 (155 boys and 135 girls with an average age of 10.3 years) completed Olweu' Aggression Inventory, an instrument developed for the assessment of aggressive and aggression controlling behavior tendencies in a Western culture. Results indicated that the questionnaire gave quite meaningful information when used with the Chinese children. Two interpretable factors, general aggression and aggression control, were derived; the pattern of factor loadings was essentially the same for boys and girls. The internal consistency reliabilities of the two factor scales were in the 0.80s and 0.70s, respectively. Overall, the findings indicated that there were distinct measurable individual differences among Chinese children in the domain of aggression—in spite of strong societal pressures against aggressive behavior and towards aggression control. However, some results suggested that aggression was a somewhat more global, or less differentiated, phenomenon for the Chinese as compared with the Swedish children. The two main factor scales were related meaningfully to other self report dimensions such as positive attitude to school and negative relations with parents. In all probability, the pattern of findings gave a valid picture of the behavior and attitudes of the Chinese children: By and large they were nonaggressive, well-behaved, ambitious, friendly, prosocial, and exerted strong control over aggressive feelings and behavior tendencies. In possible conflicts with adults, they were likely to take a humble and submissive attitude. These findings agree well with the impressions of Western observers and with what can be expected on the basis of the typical socialization patterns found in the People's Republic of China. Furthermore, quite marked sex differences in aggression were obtained and a partial correlation analysis showed that the higher aggression level of the boys could only to a very limited degree be explained by their lower level of aggression control or inhibitions. Generally, the sex differences in aggression were interpreted to reflect genetic variations in basic predispositions in boys and girls that had been subtly enlarged by more or less clear, sex-linked differences in environmental conditions.     

Developmental and Sex Differences in Types of Conduct Problems

Maternal report of types of conduct problems in a high-risk sample of 228 boys and 80 girls (ages 4–18) were examined, using a version of the Child Behavior Checklist, expanded to include a range of covert and overt antisocial items (stealing, lying, physical aggression, relational aggression, substance use, and impulsivity). Age and sex effects were investigated. Boys were significantly more physically aggressive than girls. There were no sex differences for stealing, lying, relational aggression, and substance use. Lying and substance use increased with age, whereas relational aggression and impulsivity peaked during early adolescence. A small group of girls had pervasive conduct problems across multiple domains. For some domains such as stealing, lying, and relational aggression, girls showed at least as many problems as boys. Girls, in general, tended to have fewer conduct problems. On the other hand, when assessed across multiple domains, conduct problems in high-risk girls were possibly more pervasive than in high-risk boys, suggesting the possibility of a gender paradox.     

Observer bias in scoring boys' and girls' aggression

In order to examine the possibility that the attribution of more aggression to boys may be in part a function of observer bias, 40 adults were asked in Study 1 to record the degree of aggression in a series of line drawings that showed children interacting. It was found that a significant subset of both males and females recorded more aggression for boys than for girls when they scanned scenes that showed numerous children interacting. When they rated a series of drawings of two children interacting, males rated boys as significantly more aggressive than girls. Study 2 examined 48 adults' responses under one of three instruction conditions. The findings of Study 1 were replicated. Additionally, it was found that some forms of instruction eliminate sex-typed biases while others yield significant biases among both male and female untrained observers. These results are interpreted in light of the literature on schematic processing. Implications pertaining to the socialization of aggression and to research on sex differences in aggression are discussed.     

The relationship between three types of aggression and peer relations in elementary school children

Previous studies have repeatedly found that aggression causes various internalizing and externalizing problems. Despite the robust relationship, exactly how aggression causes these problems remains unclear, although it is plausible to postulate that this occurs both directly and indirectly (via other behavioural factors). One possible indirect factor might be the aggravation of peer relations. The poor peer relations of aggressive children could make them isolated psychologically or physically from peers, which in turn might result in depressive or disruptive problems. This study examined the relationships between three types of aggression and peer relations in Japanese elementary school children. The three aggression types comprised reactive-expressive (i.e., verbal and physical aggression), reactive-inexpressive (e.g., hostility), and proactive-relational aggression (i.e., aggression that can break human relationships, for instance, by circulating malicious rumours). Participants were 1581 children in grades 4 to 6 (752 boys and 829 girls), all of whom completed the Proactive-Reactive Aggression Questionnaire for Children to measure three types of aggression and the Peer Relation Questionnaire to measure peer relations (mutual understanding, self-disclosure, and similarity of taste) and number of friends. Hierarchical regression analyses of the data showed that higher scores of relational aggression were significantly associated with higher scores of all of the peer relations and the number of friends, and that higher scores of inexpressive aggression were significantly associated with lower scores of all except for self-disclosure in the peer relations. These findings suggest that among the three types of aggression, relational aggression leads to the best friendship in both dyadic relations and the number of friends, whereas inexpressive aggression to the poorest friendship. The implications of these findings with respect to internalizing and externalizing problem behaviours for aggressive children are discussed.     

The Role of Relational Aggression in Identifying Aggressive Boys and Girls

Peer perceptions of relational and overt aggression and peer evaluations of social competencies were obtained for 461 boys and 443 girls in second and third grades. In contrast to Crick and Grotpeter (1995), boys obtained higher relational and overt aggression scores than girls, and the relation between both types of aggression and peer evaluations were similar for boys and girls. When controlling for levels of overt aggression, relational aggression made a statistically significant but small contribution to the prediction of both peer-evaluated competencies and teacher ratings of aggression in boys and girls. Analyses treating relational and overt aggression as categorical variables revealed gender differences in the prevalence and corresponding sociometric status of aggressive subtypes. When peer-rated relational aggression status is not considered, 60% of aggressive girls, compared to 7% of aggressive boys, are not identified as aggressive. High levels of overt aggression were more likely to result in peer rejection for girls than for boys. In a subsample of 112 children, peer-rated relational aggression contributed more to the discrimination of teacher-identified aggressive and nonaggressive girls, whereas peer-rated overt aggression contributed more to the discrimination of teacher-identified aggressive and nonaggressive boys.     

Types of aggressive behavior among aggressive-preferred, aggressive non-preferred, non-aggressive preferred and non-aggressive non-preferred 14-year-old adolescents

This study examined differences in the types of aggressive behavior among aggressive-preferred, aggressive non-preferred, non-aggressive preferred and non-aggressive non-preferred adolescents. The subjects numbered 839 14-year-old adolescents (408 girls and 431 boys). Aggressive behavior as well as social preference i.e. popularity and rejection, were assessed by peer nominations. The types of aggressive behavior measured were intriguing, arguing, fighting and bullying. The results showed that not only the level, but also the types of aggressive behavior differentiated aggressive adolescents from the non-aggressive ones, and preferred adolescents from the non-preferred ones. The aggression profile of the aggressive and rejected adolescents was characterized more by intriguing and bullying than arguing or fighting. In contrast, that of non-aggressive adolescents was dominated more by arguing and fighting than intriguing. The results pointed to a more complex relationship between aggressive behavior and social preference than the general assumption that there is a higher rate of rejection among aggressive adolescents, and a higher rate of popularity among non-aggressive ones. Significant gender differences were also found.     

Gender Differences in Psychopathic Traits,Types, and Correlates of Aggression Among Adjudicated Youth

The current study investigated gender differences in types and correlates of aggression among 150 adjudicated youth (M age = 15.2, SD = 1.4). In cluster analysis, consistent with past studies, one aggressive group characterized by moderate levels of reactive aggression and one characterized by high levels of proactive and reactive aggression emerged and these patterns were consistent across gender. For both boys and girls, the combined proactive/reactive aggression cluster showed the greatest levels of aggression, impulsivity, and callous-unemotional traits, supporting a severity over a typology model of proactive and reactive aggression. Girls displayed significantly higher rates of physical and relational aggression than boys. Girls were highly aggressive toward both girls and boys, whereas boys were highly aggressive only toward other boys. Girls also showed multiple indications of severity and emotionality, indexed by higher rates of negative affect, anxiety, distress about social provocations, and empathy.     

Sex differences in relational and overt aggression in the late elementary school years

Sex differences in relational and overt aggression among 3rd (n=176), 4th (n=179), and 5th graders (n=145) from three public schools (n=500; 278 girls) were examined. Nominations of relational aggression increased over time among 4th and 5th grade girls, but not among boys or 3rd grade girls. Among 3rd graders, boys received more nominations for relational aggression than girls. By the end of the 5th grade, girls received more relational aggression nominations than boys. There was also a significant rise in nominations of overt aggression among 5th grade girls, but not among 5th grade boys or younger boys and girls. As expected, boys were more likely than girls to be nominated for overt aggression at all grade levels. The findings are helpful for explaining inconsistencies of earlier research pertaining to sex differences in relational aggression and for advancing our understanding of the causes of aggression. Aggr. Behav. 36:282–291, 2010. © 2010 Wiley‐Liss, Inc.