• 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.

• The Korean Journal of Physiology
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• v.2 no.2
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• pp.101-135
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• 1968

As physical fitness measured was muscle strength (hand grips, leg extention, back lift, and arm pull and thrust), skinfold thickness (5 different sites), circulatory function (resting heart rate and blood pressure), speed (kinesiological analysis during 100m sprint, record, maximal and final speed), motor function (50 meter dash, ball throwing, standing broad jump, and pull-ups), maximal aerobic power (maximum oxygen intake by field running method), muscle power (leg and arm by inertia ergometer), and general endurance (maximum endurance running time on the treadmill at the speed of 5 MPH and grade of 15.5%) of 1131 Korean children (boys 572, girls 559) aged of 6 to 17 years, who were randomly sampled from 24 primary, middle and high schools at the two districts of Seoul and KyungKi. The results are summarized as follows: 1) The status (height and weight) of the children was almost same as that of the previously reported Korean and Japanese children of same ages. 2) Muscle strength was a gained linearly with geting age in the boys and girls but there was a little improvement in girls aged of 13 years or more. 3) The mean skin fold thickness was increased linearly with geting ages in both sexes, but the girls from 12 to 17 years of age were increased rapidly, and maximum value was 17mm, while boys was 7.0 mm. 4) In the circulatory function, the resting heart rate was decreased, but the blood pressure was increased with ages in both sexes within the normal limits. 5) The maximum and final speed during 100 meter sprint increases with age in boys but girls who are 12 years old or older, were not improved any mere. The patterns of running were same in both sexes, and maximum speed reached at about 30 meters from starting line. 6) The motor function was increased with age in both sexes, but there was no improvement in 12 years of age or older girls. More over records of all functions except standing broad jump was less than those of Japanese in the same age, respectively. 7) The maximum oxygen intake (MOI) was increased considerably with ages and maximum values were 2.93 L/min (boys) and 2.09 L/min (girls) at the age of 17years. This result was almost same as that of the Japanese and Easter Island population, but the value was lower than that of Europe. The average of the maximum oxygen intake per kg body weight per minute from 9 to 17 years of age were around 53 ml in the boys and 42 ml in the girls. 8) Muscle power was increased linearly with ages in boys while there was relatively a little increment in girls. The maximum values of leg muscle in boys and girls at the 17 years of age were 0.168 and 0.088 horse power, respectively. 9) The maximum endurance running time was increased considerably from the age of 9 in boys, while there was no improvement in girls. The maximum values were 6.0 min and 1.8 min, respectively.

• Journal of the Korean Home Economics Association
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• v.48 no.1
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• pp.41-54
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• 2010

The purpose of this study was to investigate the relationships among children's important self-domain, self-evaluation and global self-esteem by gender. Information was collected on 376 5-6th graders from elementary schools in Busan. The major findings were that 1) The self-evaluation of peer domain was the most powerful determinant on self-esteem in both boys and girls 2) The percentage that valued domain of family self was higher than the other groups in both boys and girls(boys 36.3%, girls 55.4%). 3) In boys' domains of peer self and computer self, important self-domain moderated the effect of self evaluation on global self-esteem.

• Korean Journal of Child Studies
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• v.27 no.1
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• pp.167-181
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• 2006

Subjects were 2192 middle and high school students of Seoul and Kyonggi Province. Data, consisting of a self-report questionnaire, were analyzed by two-way ANOVA, univariate F-test and stepwise multiple regression. Findings were that boys showed more avoidance/distraction and active problem solving styles but less support seeking than girls. Older adolescents reported less parent attachment than younger adolescents; girls reported more mother attachment than boys. Older adolescents reported more life satisfaction than younger adolescents; girls reported more life satisfaction than boys. A higher degree of life satisfaction was reported by subjects with more parent attachment, more active problem solving and less avoidance/distraction styles, by younger adolescents, and by girls. Degree of parent attachment was the most powerful predictor of adolescents' satisfaction with life.

• Korean Journal of Child Studies
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• v.31 no.3
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• pp.83-97
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• 2010

Growth mixture modeling was used to identify types of changes in overt aggression from Grades 4 to 7 among a sample from the Korean Youth Panel Survey. Three discrete patterns were found to adequately explain changes of overt aggression in both boys and girls : Persistent intermediate aggression; Increasing aggression; and Decreasing aggression. Most boys (93%) fell into the Persistent intermediate aggression group and 49% of girls were found to fall into the Increasing aggression group. This suggests that prevention programs should recognize that girls are at risk of increasing aggression in their early adolescence. Multinomial logistic regression analysis shows that self-control, child abuse, peer support, and involvement with deviant peers at Grades 4 were all strongly associated with trajectory class membership. These associations did not differ by gender. These findings suggest that prevention programs should focus on the multiple risk factors of both boys and girls.

• Child Studies in Asia-Pacific Contexts
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• v.6 no.2
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• pp.47-57
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• 2016

This study investigated whether Korean mothers' emotion socialization beliefs are related to emotional functioning in children differing across gender. We interviewed Korean mothers (N = 100) of first graders (55 boys; 45 girls) about their sensitivity, their reactions to children's distress, and children's emotion regulation. Two components of emotion regulation were distinguished: regulation and negativity. Results revealed that mothers' proactive sensitivity and their supportive reactions were related to their children's regulation, whereas unsupportive reactions were related to children's negativity. Child gender moderated the associations between mothers' socialization beliefs and children's emotion regulation: mothers' proactive sensitivity was more strongly associated with competent regulation in girls than in boys. Mothers' unsupportive reactions were related to increased negativity only in girls. Results are discussed from a cultural perspective, focusing on gender differences in the links between maternal socialization and children's emotional outcomes in Korea.

• Korean Journal of Childcare and Education
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• v.12 no.6
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• pp.19-39
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• 2016

The present study examined differences in children's behavior problems and peer interaction, and parental factors including self-esteem, depression and childrearing stress between atopic dermatitis(AD) and normal(non-AD) children in each gender, and analyzed the effects of the parental factors on the two variables of AD children. 165 AD and 1176 non-AD children of age 5 were selected from the 6th year data of the Panel Study on Korean Children. The results from t-test and multiple regression are as follows. First, only AD boys showed a higher level of behavior problems than non-AD boys, but peer interaction showed no difference between AD and non-AD groups. Compared with non-AD children's parents, mothers of AD children showed a higher stress level and mothers of AD boys had a higher depression level. But there were no differences in maternal self-esteem and paternal factors between the groups. Second, AD boys' behavior problems were related to maternal factors and paternal stress, and some characteristics of AD girls' behavior problems were related with some parental variables. But peer interaction of AD children had no relation with parental factors. Third, behavior problems were influenced by maternal stress in AD boys and influenced by maternal depression and parental self-esteem in AD girls.

• Journal of the Korean Home Economics Association
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• v.49 no.3
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• pp.11-21
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• 2011

The purposes of this study were to explore the gender differences in children's behavior problems, emotional regulation and social support, and to investigate differences between boys and girls in the interrelationships between these kinds of variables. The participants were 189 children in 4 to 6 grades and their teachers from one elementary school in Seoul. The data were analyzed using descriptive statistics, t-test, Pearson's correlation, and multiple regression. The results were as follows: (1) There were statistically significant gender differences in the children's behavior problems, emotional regulation and social support. (2) Children's negative emotion explained boys and girls acting out problems and learning problems. Children's positive emotion regulation explained boys' and girls' shy-anxious and learning problems. Boys, who perceived less support from parents, displayed more acting out behavior, boys who perceived less supports from friends showed more shy-anxious behavior, and boys who perceived less supports from teachers exhibited more learning problems.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.16 no.2
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• pp.231-238
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• 2005

Objectives : This study was done to figure out the incidence of Korean adolescents with gender identity problem and homosexual tendency. Self esteem and sexual liberality were also checked to evaluate the relation with these problems. Method : Subjects were 1,748 adolescents (359 middle school boys, 452 middle school girls, 483 high school boys, and 454 high school girls). DSM-IV-TR gender identity disorder criteria, Kinsey's sexual orientation scale, Hudson's short form sexual liberality scale, and Halter's Self-perception profile for children were applied to them. Result : 1) $15\%$ of the middle school boys, $16.7\%$ of the high school boys, $39.4\%$ of the middle school girls, and $40.5\%$ high school girls showed gender identity problem. Incidence of mild problem was more frequent in girls, however severe problem that suggested gender identity disorder was more frequent in boys, especially in high school boys. 2) Gender identity problem group showed lower self esteem than no problem group, especially in the middle school boys (p=0.033) and high school girls (p=0.020). 3) $17\%$ of the middle school boys, $5.4\%$ of the high school boys, $17.7\%$ of the middle school girls, and $12\%$ of the high school girls showed homosexual tendency. The order of more vivid homosexual orientation incidence was as follows ; $3.3\%$ in the middle school girls, $3.1\%$ in the middle school boys, $2.1\%$ in the high school girls, and $1.7\%$ in the high school boys. 4) There was no difference in the score of sexual liberality according to homosexual tendency. In high school girl, self esteem score was lower in homosexual tendency group than that of heterosexual group (p=0.039). 5) Gender identity problem group showed higher incidence of homosexual tendency than that of gender identity formation group (p=0.001). 6) The incidence of sexual identity problem was not changed by age, but homosexual tendency was decreased with age, especially in boys. Conclusion : Adolescents with gender identity problem or homosexual tendency showed low self esteem. Therefore, more attention on systemic evaluation for early detection in school based mental health and psychiatric management for them are needed.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.16 no.1
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• pp.117-123
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• 2005

Objectives : The purpose of the present study was to investigate the gender differences in behavior problems and social competences of Korean Adolescents. Methods : K-YSR (Korean-YSR) data from 6570 Korean adolescents (2549 boys and 4021 girls) and K-CBCL (Korean-CBCL) data from 2373 parents (boys 1173 and girls 1200) between the ages of 12 to 17 were analysed. Results : The results showed that boys reported higher mean scale scores on the Social Problems, Delinquent Behavior, whereas girls showed higher mean scale scores on the Withdrawn, Somatic Complaints, Anxious/Depressed and Aggressive Behaviors as well as Internalizing Problems and Total Behavior Problems in K-YSR. Girls also reported higher scores on the Social. as well as Total Competence Scale. Also parents reported higher mean scale scores on the Attention Problems, Delinquent Behavior in their boys, whereas reported higher mean scale scores on the Withdrawn, Somatic Complaints, Anxious/Depressed and Aggressive Behaviors as well as Internalizing Problems in their girls in K-CBCL. Parents reported no differences between boys and girls in social competence scales. Conclusion : In both K-YSR and K-CBCL, girls consistently showed higher scores in the Internalizing Problem scales and there was no significant difference between boys and girls in the Externalizing Problem scores, but girls showed higher mean score in the Aggressive Behavior scale.