• Korean Journal of Child Studies
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• v.27 no.3
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• pp.149-168
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• 2006

This study examined the effects of maternal parenting behaviors, children's social information processing, daily hassles, and emotional regulation on school-age children's aggressive behaviors using Structural Equation Modeling(SEM) analysis. Subjects were 589 children in 4, 5, 6th grade and their mothers from three elementary schools in Seoul, Korea. Data were analyzed with descriptive statistics and SEM analysis by SPSS 12.0 and AMOS 4.0. The SEM shows differences between overtly aggressive and relationally aggressive children. Maternal parenting behaviors affected their children's overt aggression through children's emotional regulation. Additionally, maternal parenting behaviors affected children's overt aggression through children's daily hassles and social information processing. Maternal parenting behaviors influenced children's relational aggression through children's daily hassles and children's social information processing.

• Korean Journal of Child Studies
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• v.37 no.4
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• pp.31-46
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• 2016

Objective: This study examined the influences of maternal and paternal psychological control and children's rejection sensitivity on relational aggression in elementary school students, and investigated whether children's rejection sensitivity mediated the relation of parental psychological control and relational aggression. Methods: The participants of this study were 596 fifth to sixth graders from seven elementary schools located in Seoul, Incheon, and Gyeonggi province. To measure the research variables, the Peer Conflict Scale (Marsee, Kimonis, & Frick, 2004), the Psychological Control Scale (Barber, 1996) and the Children's Rejection Sensitivity Questionnaire (Downey, Lebolt, $Rinc\acute{o}n$, & Freitas, 1998) were used. The data were analyzed by means of descriptive statistics and t -tests. Also, structure equation model (SEM) were used to examine the mediating role of rejection sensitivity. Results: The results of this study were as follows. First, the level of paternal psychological control increased the level of children's relational aggression whereas the level of maternal psychological control had no significant effect on it. In addition, the level of rejection sensitivity had a significant positive influence on the level of relational aggression. These tendencies were observed on both boys and girls. Second, only for boys, rejection sensitivity in upper elementary school students partially mediated the relation between paternal psychological control and relational aggression. Also, for both boys and girls, rejection sensitivity completely mediated the relation between maternal psychological control and relational aggression. Conclusion: In conclusion, the higher the level of paternal psychological control, the higher the level of children's rejection sensitivity, and subsequently the higher the level of their relational aggression.

• Korean Journal of Child Studies
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• v.26 no.6
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• pp.247-266
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• 2005

Subjects of this study were 621 children selected from 5th and 6th grades of elementary schools in Pusan. Factors associated with parents and peers varied by type of peer maladjustment(aggressive type and withdrawn type, compared with a control group). Particularly, the level of factors associated with peers varied from the control group by peer maladjusted types(aggressive types and, withdrawn types). Causal relationships of parents' rejection, victimization, negative representation by parents and by peers on child？s maladjustment varied by behavior types. Negative representation of peers had a direct effect only on withdrawal. On the other hand, negative representation of peers had no effect on aggression. Victimization had a first total effect on both withdrawal and aggression.

• Korean Journal of Child Studies
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• v.29 no.4
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• pp.79-95
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• 2008

This study investigated developmental pathways mediating effects of child abuse on peer rejection. Participants were 904 poor children aged 10-15 from 16 nationwide cities/provinces who receive financial sponsorship from Childfund in cooperation with the Ministry for Health, Welfare and Family Affairs. Structural equation modeling was employed for statistical analyses. Results showed that child abuse was directly associated with heightened risk of rejection by peers; the relationship was indirectly mediated by aggression and cognitive ability. The hypothesized partially mediated model had a better model fit than the fully mediated model. Aggression and low cognitive ability, significant effects of abuse, were associated with peer rejection. Social withdrawal, also associated with child abuse, did not account for the association between abuse and peer rejection.

• Korean Journal of Child Studies
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• v.22 no.2
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• pp.149-166
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• 2001

This study examined the effects of parenting behaviors, marital conflict and sibling relations on aggression with a sample of 301 6th graders (161 boys and 140 girls) living in P city. The subjects answered questionnaires regarding parenting behaviors, including sub-scales of physical punishment and psychological control, marital conflict, and sibling relations. Aggression was rated by peers. The results indicated that boys showed higher overt aggression than girls; children were aggressive when parents frequently used physical punishment and psychological control; the more children were exposed to marital conflict, the more aggressive they were, with particularly high correlations for girls; and the less positive and the more negative the sibling relations, the higher the aggression shown by children. Among the variables, parent's behaviors were the most highly correlated with aggression in both boys and girls.

• Journal of the Korean Home Economics Association
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• v.48 no.8
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• pp.67-76
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• 2010

The major purpose of this study was to explore mediating effects of narcissism on the relationship between paternal maternal psychological control, over-expectation, and adolescent aggression. This study's participants were 678 boys and girls selected from second and third graders at middle schools in Busan. The major findings were as follows. First, there were gender differences in paternal psychological control, fathers' over-expectation, mothers' over-expectation, and adolescents' overt aggression. Second, boys' overt aggression indirectly affected fathers' psychological control and mothers' over-expectation through boys' narcissism. Third, girls' relational aggression indirectly affected fathers' psychological control and mothers' over-expectation through girls' narcissism and directly affected fathers' psychological control. Finally, girls' overt relational aggression indirectly affected fathers' and mothers' over-expectation through girls' narcissism.

• Child Health Nursing Research
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• v.24 no.4
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• pp.484-495
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• 2018

Purpose: This study was conducted to develop a scale for measuring aggression in adolescents, based on Ajzen's Theory of Planned Behavior (TPB). Methods: The participants were 38 adolescents in an in-depth study conducted to develop items for indirect measurement, 13 adolescents in a pre-test, and 289 adolescents in the present survey. The collected data were analyzed using content validity, the correlation coefficient, exploratory factor analysis, confirmatory factor analysis, reliability, and the Cronbach's ${\alpha}$. Results: In this study, the most important variable related to aggression was found to be aggression intention. This study included 4 factors of direct measurement and 6 factors of indirect measurement; therefore, 41 questions were developed. Increased levels of aggression were associated with higher scores for attitudes of aggression, subjective norms, perceived behavioral control, and aggression intention. Conclusion: We found that the questionnaire used in this study was valid and reliable as a measurement scale to explain aggression in adolescents based on TPB. Aggression intention should be included in aggression prevention programs because it was linked to aggressive behavior.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.20 no.1
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• pp.17-22
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• 2009

Objectives : A higher level of aggression has been reported for children with attention-deficit/hyperactivity disorder (ADHD) than for non-ADHD children. Aggression was shown to have a negative effect on the social functioning of children with ADHD. The ability to recognize facial emotion expression has also been related to aggression. In this study, we examined whether impulsivity and dysfunctional recognition of facial emotion expression could explain the aggressiveness of children with ADHD. Methods : 67 children with ADHD participated in this study. We measured the ability to recognize facial emotion expression by using the Emotion Recognition Test (ERT) and we measured aggression by the T score of the aggression subscale of the Child Behavior Checklist (CBCL). Impulsivity was measured by the ADHD diagnostic system (ADS). Results : The teacher rated level of aggression was related to the score of recognizing negative affect. After controlling for the effect of impulsivity, this relationship is not significant. Only the score of the visual commission errors ex plained the level of aggression of children with ADHD. Conclusion : Impulsivity seems to have a major role in explaining the aggression of children with ADHD. The clinical implication of this study is that effective intervention for controlling impulsivity may be expected to reduce the aggression of children with ADHD.

• Korean Journal of Human Ecology
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• v.23 no.4
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• pp.599-611
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• 2014

The purposes of this study were (1) to explore the gender differences in children's overt aggression and relational aggression and (2) to investigate the effects of preschool children's gender, temperament, emotional regulation, and maternal parenting stress on overt aggression and relational aggression. The participants were 173 preschool children and their mothers from three day care center and two kindergarten in Seoul and Gyeong-gi province. The data were analyzed using descriptive statistics, t-test, correlations, and multiple regressions. The results were as follows: (1) There was statistically significant gender difference in preschool children's overt aggression, but there was statistically no significant gender difference in preschool children's relational aggression. Boys displayed more overt aggression than girls. (2) Preschool children's emotional regulation and activity explained children's overt aggression and relational aggression. When preschool children expressed more emotional regulation, they showed less overt aggression and relational aggression. Preschool children, who perceived having more activity from mothers, diaplayed more overt aggression and relational aggression. Gender was found to affect preschool children's overt aggression.

• Korean Journal of Child Studies
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• v.22 no.2
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• pp.167-180
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• 2001

With 338 fifth-grade students as subjects, this study examined variations in the relation between school bullying and rejection or acceptance by peers as a function of gender and types of aggression. Results showed that the more a boy bullied other children, the more likely he was to be rejected by peers. The more a girl bullied other children, the more likely she was to be accepted by peers. Girls' aggressive behaviors also contributed to their acceptance by peers. When levels of physical and relational aggression were kept constant, verbal aggression was positively related to peer rejection for boys but negatively related for girls. The use of relational aggression contributed to peer rejection only for girls. The findings provide preliminary bases for understanding bullying. Implications of the gender differences are discussed.