• Journal of the Korean Society of School Health
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• v.9 no.1
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• pp.99-108
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• 1996

The purpose of the survey was to identify the degree and the relationship of sexual knowledge, sexual attitude and need of sex education. This information will provide useful data for a more systematic. desirable, and practical sex education. The data was collected from 300 first grade schoolchildren (150 boys and 150 girls) of two Junior high school in K city. The data was gathered by questionnaire from Nov.21 to 28, 1995. The questionnaire was modified by authors using the questionnaire developed by Lief & Reed. Data was analyzed by using the statistical computer package, SAS to manipulate the data along with percentages, means, standard deviation, t-test, $X^2$-test, GLM, and Pearson correlation coeffiency. The results in this study were summarized as follows: 1. Sexual knowledge. - The mean score of sexual knowledges showed no significant differences between boys and girls(p<0.6180), but in the areas of biological differences(boys; $11.57{\pm}2.43$, girls; $10.93{\pm}2.41$, p<0.0242), and pregnancy physiology(boys; $9.28{\pm}1.87$, girls; $10.04{\pm}2.42$, p<0.0026) showed significant difference between boys and girls. 2. Sexual attitudes. - The mean score of sexual attitudes showed no significant difference between boys and girls (p<0.8286), but in the areas of masturbation (boys : $6.69{\pm}2.22$, girls : $5.65{\pm}1.88$, p<0.0001), and premarital intercourse (boys : $5,42{\pm}1.35$, girls : $6.00{\pm}1.33$, p<0.0002) showed significant difference between boys and girls 3. Need of sex education. - The majority of the subjects wanted to learn about sexual delinquency and it's prevention(57.7%), form a friendship with the other sex(56.3%), physical differences of the other sex(52.0%), psychological differences and the charateriatics of the other sex (50.3%) and meaning of love(50.3%). 4. The relationships between sexual knowledges and sexual attitudes. - Those who had higher sexual knowledges showed more positive attitudes towards sex, and showed statistical significance(r=0.2074, p<0.0003). 5. The relationships between general charateristics and sexual knowledge. - Better students(by self-perception of school performance) had higher knowledge scores about sex. 6. The relationships between general charateristics and sexual attitudes. - Those who wanted to learn more about sex, and better students had higher attitude scores about sex. - Those who were in high standard of living had higher attitude scores about sex as well. Suggestions based on above study are as follows' 1. The planned sex education showed be performed to the schoolchildren establish responsible attitudes about sex. 2. Systematic sex education through formal school education according to age is recommended. 3. Further studies should be done to measure the effect of sex education based on the needs of the schoolchildren.

• The Journal of the Korea Contents Association
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• v.19 no.3
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• pp.494-499
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• 2019

This study examined the dietary behavior of elementary school students in the Gyunggi area using the Nutrition Quotient (NQ). The subjects were 406 students (199 boys and 207 girls) in their fourth and fifth grades. The NQ, consisting 19 items, was grouped into five domains (balance, diversity, moderation, regularity, and practice). The NQ score of the boys and girls was similar (boys $61.40{\pm}14.31$, girls $63.02{\pm}14.62$). Among the five domains of the NQ, girls showed a higher score in moderation (boys $63.57{\pm}19.00$, girls $70.84{\pm}16.20$) and practice (boys $58.56{\pm}20.50$, girls $64.69{\pm}22.57$) than boys. No gender differences in diversity (boys $71.70{\pm}24.72$, girls $71.26{\pm}23.57$), regularity (boys $59.39{\pm}23.73$, girls $59.34{\pm}23.57$), and balance (boys $56.73{\pm}19.62$, girls $54.58{\pm}20.03$) were observed. The percentage distribution of the NQ grade was 10.8% (highest), 9.4% (high), 45.1% (medium), 20.4% (low), and 14.3% (lowest). More opportunities should be provided for children with a low and lowest NQ grade to participate in nutrition education.

• The korean journal of orthodontics
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• v.17 no.2
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• pp.215-221
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• 1987

This study was designed to investigate the growth amount and rate of mandible by the measurements of mandibular lateral surface and the relationship of peak growth increments between mandible and body height The sample consisted of twenty-five boys and fifteen girls between the ages of 6 and 13 The surface of mandible was measured from digitized roentgenocephalometric analysis (A 27 point mandibular model) The findings of this study can be summarized as follows 1 No significant difference was found between mandibular lateral surfaces of the both sexes at the ages studied. 2 The mean growth amount of mandibular lateral surface from 6 to 13 years of ages was $9\;09cm^2$ in boys and $8\;29cm^2$ in girls, and the mean growth rate was 46 07% in boys and 42 57% in girls 3 The prepubertal peak growth increment in mandible was found between the ages of 11-12 in girls and 12-13 in boys 4 The prepubertal peak growth increments of mandible occured one year later that of body height in boys and girls.

• The Journal of the Korea Contents Association
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• v.14 no.4
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• pp.227-236
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• 2014

This study was conducted to explore the mediation effects of irrational belief on the relationship between game addiction and anger behavior. For this study, 431 middle school boys in Chungcheong areas were included in the analysis. The results showed that game addiction was positively correlated with direct anger-out, rumination, diffusion as well as irrational belief. The boys at high risk of game addiction showed higher mean scores on irrational belief, direct anger-out, rumination: and diffusion than other students. Irrational belief (mediator) partially mediated the influence of the boys' game addiction (independent variable) on direct anger-out, rumination, and diffusion (dependent variable). Finally, limitations of this study and suggestions for future study were discussed.

• Korean Journal of Child Studies
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• v.9 no.1
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• pp.33-46
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• 1988

The purpose of this study was to investigate the effects of age, sex, and friendship type on child's shared knowledge of a friend. The following hypotheses were raised; Child's shared knowledge of friend would increase with age, shared knowledge of girls would be higher than that of boys shared knowledge of girls would be higher than that of boys shared knowledge in a mutual friendship would be higher than in a unilateral friendship, there would be an interaction effect between age and friendship type in child's shared knowledge of friend. The subjects of this study consisted of 80 boys and girls, 8- and 11-year-olds. Shared knowledge of a friend was measured with a modified version of the 70 picture items developed by Ladd and Emerson (1984). The obtained data were analyzed by three-way ANOVA. Child's shared knowledge of a friend increased with age. Girls exhibited greater ORSK (other-referenced shared knowledge) than did boys, but there was no significant difference between girls and boys in SRSK (the selfreferenced shared knowledge). Mutual friendships exhibited greater SRSK than did unilateral friendships, but there was no significant difference between mutual friendship and unilateral friendship in ORSK. There was a significant interaction effect between age and friendship type in child's shared knowledge of friend.

• Journal of the Korean Home Economics Association
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• v.37 no.8
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• pp.103-116
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• 1999

The purpose of this study was to explore leacher and peer relationships and child development in two types of early childhood program; halfway kindergarten and full-day childcare. The subjects were 90 four and half year old children and their teachers enrolled in 10 kindergartens and 20 childcare centers in Seoul. Each teacher evaluated her children with six scales developed by NICHD Early Child Care Research Network(1996); child-leacher relationship, peer relationship, social competence, adaptive language, behavior characteristics, and behavior problems. The data were analyzed by ANOVA. The results of this study were as follows: First, the girls in both programs had closer relationship with their teachers than the boys. The boys in the daycare were less dependent than those of kinder; on the other hand, the girls in the daycare were more dependent than those of kinder. Second, there was no significant difference in peer relationship between the children in both centers. Third, the girls of both centers scored higher than the boys in social competence. Fourth, in the child's adaptive language, both boys and girls were well developed, but girls were higher than boys, especially in kinder Fifth, the children in both centers behaved attentively in the groups, but in particular, the girths were more attentive. Finally, most of children were received low scores in the behavior problem scale.

• Journal of the Korean Society of Costume
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• v.59 no.6
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• pp.58-71
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• 2009

The purpose of this study is to examine the increments of body measurements of the teenage boys between the ages of 13 and 18 and provide a fundamental data for apparel manufacturers in order for them to make clothing that reflect the appropriate body characteristics of the teenage boys. The total of 1587 male subjects between the ages of 13 and 18, from the 5th Anthropometric survey of Korea (Size Korea) data, were used for this study. The changes in the body dimensions were analyzed with anthropometric measurements and anthropometric index mesurements. First, anthropometric measurement results show that most of the height related measurements increased in accordance with age, and that the boys between the ages of 13 and 15 experience dramatic growth. Standard deviation is the largest between the age of thirteen and fourteen which indicates that in these ages there is a wide difference in a growth rate Second, anthropometric index measurement results show that in accordance with age, bust, waist and hip depth/width rate decreased; however, waist and hip depth/width rate increased at the age of 18. In accordance with age, upper body length rate increased, whereas lower body length rate decreased. Bust circumference, armhole length, and upperarm circumference rate increased gradually, whereas waist circumference decreased.

• Journal of the Korean Society of Clothing and Textiles
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• v.34 no.8
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• pp.1233-1241
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• 2010

This study analyzes the body characteristics of high school boys according to 3 different body types in order to improve the fit of upper garments. First, among the lateral body types, the straight body type was selected from the SizeKorea 3D scanned data and 2D measurement data. Second, high school boys (classified as straight lateral body type) were grouped into type B, A, and Y drop groups. The percentages of type B, type A, type Y are 17.8%, 48.1%, 32.1% respectively. The characteristics of the body types were analyzed. While the bust circumference were the same among the three body types (chest width, back width, back across shoulder, and bust width did not show a significant difference); however, waist and hip measurements showed a significant difference among the three body types. Third, the height of the high school boys ranged between 165cm and 180cm and the bust circumference between 85cm and 97cm. For the bust size categories, type B and type Y are distributed similarly; however, type A is distributed in the smaller bust size categories.

• Korean Journal of Human Ecology
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• v.22 no.3
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• pp.391-404
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• 2013

This study examined the moderating role of teacher-child relationship on the relation between children's problem behavior and peer victimization. Participants were 198 children(97 boys, 101 girls; recruited from classes with 5-6 year olds) and their kindergarten teachers. The teachers completed the rating scales to measure the children's peer victimization, problem behavior and teacher-child relationship. The collected data were analyzed using descriptive statistics, t-tests, correlations, and hierarchical multiple regressions. Boys and girls were analyzed separately. Results showed that children's problem behavior had positive relation to their peer victimization. Teacher-child relationship significantly related to children's peer victimization. Hierarchical regression analysis indicated that the interaction of boys' withdrawal behavior and teacher-child closeness predicted boy's peer victimization. Boys' withdrawal behavior, whose teachers demonstrated the lowest level of teacher-child closeness, associated significantly with their peer victimization. Boys' withdrawal and aggressive behavior had significant relation to their peer victimization, especially for the highest level of teacher-child conflictual relationship. Findings suggested the importance of teacher-child relationship in the context of intervention planning for peer victimization.

• Korean Journal of Child Studies
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• v.32 no.5
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• pp.67-84
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• 2011

This study examined the effects of parental control and children's autonomy on self-esteem, using a sample of 415 school-age children (208 boys and 207 girls) recruited in Seoul. Ordinary Least Square regressions revealed a variety of gender-based differences in the associations among these three variables. Boys with high maternal behavioral control had high levels of self-esteem, whereas girls under low paternal psychological and high behavioral control reported high levels of self-esteem. Boys with high maternal behavioral control and girls with high paternal behavioral control also reported high levels of autonomy. Autonomy was found to exert a positive impact on self-esteem for both boy and girls. Autonomy played a mediating role in the relationships between maternal behavioral control and self-esteem for boys, and between paternal behavioral control and self-esteem for girls. These findings highlight the differential influences of psychological control and behavioral control on autonomy and self-esteem, as well as the relative impact of the opposite sex parent on the development of autonomy and self-esteem in late childhood.