• Korean Journal of Child Studies
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• v.22 no.1
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• pp.19-34
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• 2001

Data for this short-term longitudinal study were collected at 4 month intervals. Subjects were 423 children attending grades 4, 5, and 6 in Pusan and their mothers. Results showed that casual models of risk and protective factors differed by sex and types of behavior problems. For boys, mother's psychological problems, children's self-control, and their self-esteem directly influenced externalizing behavior problems while mother's psychological problems and children's perceived control parenting indirectly influenced externalizing behavior problems by way of self-esteem. Mother's psychological problems and boys' self-esteem directly influenced internalizing behavior problems. Girls' externalizing behavior problems were influenced directly mother's psychological problems, children's negative emotionality, and peer acceptance. Mother's psychological problems and girls' perceived support from teachers influenced internalizing behavior problems directly. Based on these results the authors proposed an intervention program against children's behavior problems.

• Korean Journal of Child Studies
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• v.30 no.4
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• pp.87-97
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• 2009

This study used Hierarchical Linear Modeling analysis to investigate the effects of individual self-regulated cognitive strategies and public education on middle school students' academic achievement. Participants were 6389 (boys 3287, girls 3102) middle school students from the 2005 data of the Korea Education Longitudinal Study. Results were as follows : (1) there were significant differences among different schools in middle school students' academic achievement, i.e. 20% of variance in English achievement and 15% of variance in mathematics achievement were explained by school differences. (2) Students' elaboration and meta-cognitive strategy influenced academic achievement positively. (3) Predictor variables by ability grouping, supplementary class, and/or self-learning class had no significant effects on students' academic achievement.

• Korean Journal of Child Studies
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• v.30 no.4
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• pp.57-68
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• 2009

This study addressed ways in which parental poverty factors are associated with child school performance and how these relationships may be mediated by self-regulated study performance. Data of the Korea Education Longitudinal Survey (KELS : 2005) were used in this survey of 6,908 students in 150 schools. Parental poverty status, self-regulated study performance, and school performance achievement were administered when children were in 7th grade. Using structure equation modeling analysis, the results of this study confirmed that self-regulated study performance is a mediator of the linkage between poverty and school performance. Thus, children's positive self-regulated study performance acts to buffer the negative cycle of poverty.

• Korean Journal of Child Studies
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• v.29 no.3
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• pp.115-125
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• 2008

This longitudinal study tested the role of adolescents' emotional regulation and self-esteem as mediators of the associations between parenting behaviors and adolescent's internalizing problems one year later in a sample of 125 adolescents aged 16 to 17 years growing up in single parent families. Structural equation modeling was used for analyses of research questions. Results indicated that time 1 parenting behaviors were not associated with time 2 adolescents' internalizing problems directly, but that time 1 and time 2 self-esteem mediated the associations between time 1 parenting behaviors and time 2 adolescents' internalizing problems.

• Korean Journal of Child Studies
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• v.35 no.5
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• pp.135-154
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• 2014

This study examined the causal relationships between parenting stress and self-efficacy of Korean mothers with an infant according to employment status using the second through fourth wave data of the Panel Study of Korean Children (PSKC). Autoregressive cross-lagged modeling was performed to test the longitudinal reciprocal relationships between the two constructs. Our results indicated that both maternal parenting stress and self-efficacy were consistent over time. The results also indicated that there was a significant cross-lagged effect of maternal parenting stress on their self-efficacy, rather than vice versa. No differences between working and non-working mothers were found in the relationship between the two constructs.

• Korean Journal of Child Studies
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• v.28 no.2
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• pp.217-233
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• 2007

The present study investigated the effects of individual, family, school, and community factors on the onset of adolescent runaway behavior. Using the Korean Youth Panel data(n=3,118), discrete-time survival analysis was applied for research purposes. Results showed that the likelihood of onset of adolescent runaway behavior increased sharply during the early middle school years. The variables of self-control, aggression, parents' divorce, paternal abuse, attachment with parents, and number of delinquent peers were associated with the likelihood of runaway behavior. These results suggest that special attention should be paid to adolescents in the early middle school years and that various preventive programs, e.g., aggression and stress management, and peer relations programs, should be developed and implemented.

• Clinical and Experimental Pediatrics
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• v.50 no.4
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• pp.335-339
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• 2007

The link between upper airway disease (allergic rhinitis and sinusitis) and lower airway disease (asthma) has long been of interest to physicians. Many epidemiological and pharmacological studies have provided a better understanding of pathophysiologic interrelationship between allergic rhinitis and asthma. The vast majority of patients with asthma have allergic rhinitis, and rhinitis is a major independent risk factor for asthma in cross-sectional and longitudinal studies. The association between sinusitis and asthma has long been appreciated. Through the recent evidences, allergic rhinitis, sinusitis, and asthma may not be considered as different diseases but rather as the expression in different parts of the respiratory tract of same pathological process in nature. Various mechanisms have been proposed to explain the relationship between asthma and upper airway diseases, but the underlying mechanisms are not completely discovered. The implications for the one-airway hypothesis are important not only academically but also clinically for diagnostic and therapeutic purposes.

• Anxiety and mood
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• v.1 no.1
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• pp.18-24
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• 2005

The Diagnostic and Statistical Manual 4th edition (DSM-IV) has been widely accepted and used for international classification of mental disorder. The DSM has been changed to improve diagnostic reliability and validity through descriptive and categorical approaches which was undertaken atheoretically. The authors reviewed current studies about the DSM-IV classification system and the diagnostic issues of representative categories of anxiety disorder. The authors concluded that the anxiety disorder classification system in DSM-IV has limitations such as a lack of empirical consideration for overlapping features of anxiety disorders and a lack of discriminant validity. To improve diagnostic validity and revise the current DSM-IV classification system, the authors suggested 1) more longitudinal studies for collecting empirical evidence, 2) decreasing the dependence upon operational criteria, 3) deceasing diagnostic boundary blurring, 4) developing disease specific biological diagnostic techniques and 5) continued collaboration between the DSM and International Classification of Diseases (ICD) systems.

• Korean Journal of Child Studies
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• v.30 no.3
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• pp.1-21
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• 2009

Using samples of working mothers with 0-to-47 month old children extracted from the National Longitudinal Survey of Youth (NLSY), this study investigated effects of mothers' job characteristics on parenting behaviors and young children's motor, social, and cognitive development. Date were analyzed by descriptive statistics and multiple regression analysis. Results indicated that (1) job dissatisfaction was negatively related to children's development. (2) Working fewer hours was positively associated with mothers' cognitively stimulating parenting behaviors. (3) Total earnings were a positive predictor of mothers' emotional support. (4) The availability of a flexible hour benefit was positively related to mothers' cognitive stimulation level but the availability of a paid sick and vacation days combined benefit was negatively related to mothers' cognitively stimulating parenting behavior.

• Korean Journal of Child Studies
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• v.30 no.5
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• pp.103-117
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• 2009

This study examined patterns of delinquent behavior trajectory from late childhood to early adolescence and examined relationships between patterns of trajectory and individual, family, and school factors. Youth delinquent behavior trajectories were examined by mixed growth models using data from the 2nd to 5th year surveys of the Seoul Panel Study of Children. Relationships between patterns and effect factors were examined by multinominal logit models. Four patterns emerged: non-delinquency (80%); rapidly accelerating delinquency (3.3%); decelerating delinquency (6.0%); and moderately accelerating (10.7%) groups. Contacts with a delinquent peer group had persistent effects on more serious delinquent behavior trajectories. Increased levels of self-esteem and school achievement prevented increase in delinquent behaviors; close relationships with parents and parental supervision caused decrease in delinquent behaviors.