• Journal of Korean Academy of Oral and Maxillofacial Radiology
• /
• v.1 no.1
• /
• pp.21-27
• /
• 1971

The author investigated the carpal bone and ephiphyses on the roentgenographic films. Several methods have been used in the study of carpal bones but I have calculated the numbers of ossification center. The subjects consisted of 259 boys and 239 girls from 3 to 13 years of age. The results are summerized as follows; 1. The number of ossification center were increased in aging both boys and girls. 2. Ossification tendency was more faster boys than girls and the difference of left and right hand were non significant. 3. The ossification of ephiphyses was completed in 4 years of age.

• Korean Journal of Child Studies
• /
• v.16 no.2
• /
• pp.49-63
• /
• 1995

The purpose of the present study was to investigate effective parental controls by age of child. The subjects participating in this study were 10, 12, 15, and 18-year-old school boys residing in Seoul. A total of 1,468 boys was used in the final analysis. Factor analysis and multiple regression of SPSS $PC^+$ were utilized to test the hypotheses. The findings of the analysis showed that the impact of various parental controls on antisocial behavior varied with developmental stages of the children. Younger boys were more susceptible to direct controls, while indirect controls proved more effective for older youngsters.

• Journal of Environmental Health Sciences
• /
• v.3 no.1
• /
• pp.45-47
• /
• 1976

A survey was carried out in order to figure out of phenomenon by school feeding from June 1973 to May 1974. Hematological values and plasma protein of 94 boys and 91 girls (total 185 students)were studied. As the results of this survey, the following conclusions were obtained. 1. Hemoglobin, hematocrit, mean corpuscular hemoglobin concentration of boys and girls were increased after school lunch. 2. Plasma protein of boys and girls were clearly increased after school lunch.

• Korean Journal of Child Studies
• /
• v.30 no.6
• /
• pp.523-534
• /
• 2009

This study examined the mediating role of representation of peers on the relations between children's representation of mother and social competence. Subjects were 547 elementary school children. Baron and Kenny's model (1986) was used to investigate mediating effects. Results were (1) there were no differences in the representation of mother by gender. Girls had more positive representation of peers than boys. (2) Girls' representation of mother had more influence on social competence than boys'. (3) Girls' representation of peers had more influence on social competence than boys'. (4) Representation of peers mediated relations between representation of mother and social competence. Girls' representation of peers had more mediating effect than boys'.

• Korean Journal of Child Studies
• /
• v.33 no.4
• /
• pp.1-17
• /
• 2012

This study examined the developmental trajectories of perceived level of stress and depression in Korean youth using longitudinal data from the Korean Youth Panel Study (KYPS) of 2,844youth (1,524 boys) across $4^{th}$ grade through $8^{th}$ grade. Latent growth modeling indicated the presence of age-related, significant increases in stress and depression for both boys and girls. Girls experienced greater in stress and depression than did boys. Multiple group analysis indicated that there was no significant sex difference in effects of stress on depression. Overall, increases in stress were associated with increases in depression levels for both boys and girls. Conceptual and clinical implications of the findings were discussed.

• Child Health Nursing Research
• /
• v.8 no.1
• /
• pp.86-96
• /
• 2002

The purpose of this study was to understand life experience of mother's abscence to the adolescent boys. Nine participants(7th-9th grades) were selected and interviewed intensively. Data were analyzed according to the methods of Colaizzi. Significant statements were extracted from data. From those significant statements, 37 themes, 15 clusters of themes and 5 categories were emerged. Fifteen cluster of themes formed 5 categories : Feeling loneliness, longing for mother and suppressing the painful feelings, sense of distance between toward father and friend, being pessimistic about the situation they face, and feeling envy. In this study the author described unique life experience of adolescent boys who are living with single father.

• Korean Journal of Child Studies
• /
• v.34 no.4
• /
• pp.53-64
• /
• 2013

The purpose of this study was to investigate the influence of covert narcissism and self control on the daily stresses encountered by school-age boys and girls. The subjects were 517 children who attended in elementary schools in Daegu and Gyeongbuk Province. Self reporting questionnaires were used to investigate covert narcissism, self control and daily stresses. The data thus collected were analyzed by means of Pearson's correlation, multiple regression, using SPSS Win 19.0. The results are as follows. (1) In term of daily stresses, the regression findings indicated the main effect of covert narcissism and self control. Daily stresses increased as school-age boys' and girls' covert narcissism increased or their self control decreased. (2) Covert narcissism influenced more on daily stresses than self control did for both boys and girls. (3) There were significant interactions between school-age girls' covert narcissism and self control in term of daily stresses.

• Korean Journal of Child Studies
• /
• v.28 no.4
• /
• pp.1-17
• /
• 2007

Participants in this study on links between toddlers' compliance and variables were 97 toddlers and their mothers. Instruments were the Toddler Behavior Assessment Questionnaire (Goldsmith, 1988) and the Child Rearing Practice Report-Q Sort (Block, 1981). Toddlers' compliance was observed on clean-up and behavior-delay tasks. Data analysis was by logistic and regression analyses. Results on the clean-up task indicated lower compliance by difficult children and higher compliance by girls. On the behavior-delay task, boys with less difficult temperament showed higher compliance by mother's higher punishment attitudes, whereas highly difficult boys were more compliant by mother's lower punishment attitudes. Girls' compliance was higher than boys in the low inhibition group whereas boys' compliance was higher than girls in the high inhibition group.

• Korean Journal of Health Education and Promotion
• /
• v.3 no.1
• /
• pp.91-97
• /
• 1985

This study was attempted to evaluate the mental health of high school students in rural and urban community. For the above purpose the Minesota Multiphasic Personality Inventory(MMPI) was conducted for the total 868 students including 213 high school bodys and 209 high school girls in rural community, and 228 high school boys and 218 high school girls in urban community. The results are summarized as follows: 1. Scores of lie, hypochondriasis and social introversion scale were statiatically higher in rural high school boys than urban high school boys, but the scores of psychopathic deviate and hypomania scale were on the contrary. 2. Rural high school girls showed statistically higher scores in depression, paranoia, psychasthenia and schizophrenia scale than urban high school girls did. 3. Scores of validity, correction, hysteria and masculinity-femininity scale were not different between rural and urban community in both of high school boys and high school girls.

• Journal of the Korean Home Economics Association
• /
• v.49 no.3
• /
• pp.79-86
• /
• 2011

The purpose of this study was to examine the relationships between temperament, social support and positive, as well as negative emotions of institutionalized children. The participants were 198 children aged from 10 to 13 years old. They were recruited from 20 childcare facilities in Seoul. Data were analyzed using Cronbach alphas, factor analyses, frequencies, percentiles, t-tests and hierarchical regression analyses. The major findings were as follows: 1) on average, girls showed higher emotionality in temperament compared to boys. Girls reported greater support of school teacher than boys. Boys experienced significantly higher positive emotions than girls, while girls reported significantly higher negative emotions than boys. 2) Positive emotions were influenced by the support of the institutionalized family as well as school teachers. Negative emotions were influenced by the support of the institutionalized family.