Sleep patterns have an important role in the physical and psychological health of adolescents. In this study, we investigated the effects of sleep duration on depression, school adjustment, and life satisfaction of adolescents. A retrospective cohort study was conducted using secondary data on first and second grade students in middle schools from the Korean Children and Youth Panel Survey. Those who responded to all items about sleep were selected, and those who were within 30 min of sleep duration difference across 1 year were selected. Participants who had no change in variables of personal factors, parental factors, and family environment across 1 year were selected (n = 421). Longer total sleep duration and shorter weekend oversleeping had effects on lower depression, higher school adjustment, and greater life satisfaction after adjusting for personal factors, parental factors, and family environment. Therefore, we propose that school nurses assess adolescents' sleep patterns and counsel and educate adolescents and their parents about the influence of sleep patterns on adolescents.

Purpose: The life satisfaction of Korean adolescents tends to decrease beginning in middle school, and this decrease has a negative effect on life satisfaction in adulthood. Gender and perceptions of parental neglect are important variables influencing the life satisfaction of adolescents in Korea. This study examined the longitudinal mediating effects of perceived parental neglect on the life satisfaction of male and female Korean adolescents to assess changes to the relationships between key variables over time. Methods: The present study analyzed data from 2,215 adolescents from the Korean Children and Youth Panel Survey's fourth-year elementary school panel spanning their first year of middle school (2013) to the first year of high school (2016). A latent growth model was applied to Korean national data. Results: The perceived parental neglect and life satisfaction intercepts differed by gender, and the intercept of perceived parental neglect influenced the life satisfaction intercept. The slope of perceived parental neglect, but not the life satisfaction slope, differed by gender, and the slope of perceived parental neglect influenced the life satisfaction slope. The Sobel method showed that the intercept of perceived parental neglect mediated gender differences in the life satisfaction intercept, and the slope of perceived parental neglect significantly influenced the gender difference in the life satisfaction slope. Conclusion: Efforts to improve adolescent life satisfaction should be differentiated by gender regarding perceptions of parental neglect.

Background: Currently, Korea is witnessing a steady increase in the number of adolescents from multicultural families. we aimed to identify the trends in life satisfaction changes and identifies the predictors of life satisfaction in multicultural adolescents at the grade level. Methods:  Data from the Multicultural Adolescent Panel Survey (2012-2015) were analyzed in this study. Accordingly, we performed multiple linear regression analysis with previously identified life satisfaction predictors in adolescents as the explanatory variables for each school year. Results: Multicultural adolescents experienced higher life satisfaction in the sixth than fifth grade, and their satisfaction tended to decline after the sixth grade. Academic satisfaction, depression, self-esteem, ego-resilience, and family support significantly predicted the group’s life satisfaction in fourth to eighth grades; however, since these factors changed across grade levels, their impact on life satisfaction also varied across grades. Conclusion: These findings highlight the necessity of developing approaches that consider the varying factors and their grade-level effects on multicultural adolescents’ life satisfaction and implementing effective policies and programs tailored to each grade level or developmental stage. These results provide valuable data to determine the timings and contents of such policies and programs.

결론적으로 본 도구는 타당도와 신뢰도가 검정된 보육시설 이용 어머니의 격리불안 측정에 적합한 측정도구로 볼 수 있다.Abstract The aim of this study was to develop and validate an instrument to measure the separation anxiety of mothers who use child care facilities. The scale was developed as follows: initial items generated, validity and reliability tests performed, and final items extracted. The initial items were developed through a literature review and interviews. The content validity was verified by five experts. Using a final questionnaire, the data was collected from 204 mothers who used child care facilities with a convenient sampling method. The construct validity was evaluated by item analysis, exploratory factor analysis and confirmatory factor analysis. The results of confirmatory and exploratory factor analyses showed that the separation anxiety consisted of 6 factors: the mother's guilty feelings (5-items), safety of child care facilities (5-items), trust of teachers (5-items), child's anxiety (4-items), interaction anxiety with the child (4-items), and management of child care facilities (3-items). The separation anxiety scale for mothers using child care facilities consisted of 26 items. The reliability of the developed scale was examined. The Cronbach's α coefficient was 0.93. These results show that this scale is a valid and reliable instrument for measuring the separation anxiety level of mothers who use child care facilities.