• The Journal of Korean Association of Computer Education
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• v.21 no.3
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• pp.51-58
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• 2018

In order to analyze the prediction of the computer entertainment behavior, this study investigated the variables' interdependencies and their causal relations to the computer entertainment behavior using Bayesian inference with the Korean Children and Youth Panel Survey data. For the study, Markov blanket was extracted through General Bayesian Network and the degree of influences was investigated by changing the variables' probabilities. Results showed that the computer entertainment behavior was significantly changed depending on adjusting the values of the related variables; school learning act, smoking, taunting, fandom, and school rule. The results suggested that the Bayesian inference could be used in educational filed for predicting and adjusting the adolescents' computer entertainment behavior.

• Human Ecology Research
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• v.58 no.2
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• pp.229-238
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• 2020

This study examined the effect of parental achievement-oriented expectation on high school students' depression and verified the mediating effect of peer relations on relations. Data were derived from the 7th wave (2016) of Korean Children and Youth Panel Survey (KCYPS), and 1,979 high school students were included. Descriptive statistics analysis, correlation analysis, multiple regression analysis, and a Sobel test were conducted using STATA. The main results were as follows. First, male adolescents perceived higher parental achievement-oriented expectation, lower peer relations, but lower depression than female adolescents. Second, parental achievement-oriented expectation was negatively related to adolescent peer relations but positively related to adolescent depression. This implies that adolescents whose parents have a higher level of achievement-oriented expectation have lower level of peer relations and higher level of depression. Third, adolescents' peer relations significantly mediated the relation between parental achievement-oriented expectation and high school students' depression. The result of Sobel test supported the significance of the mediating effect. The results highlighted a negative impact of parental achievement-oriented expectation on adolescents' mental health, and addressed how parental achievement-oriented expectation affects adolescents' depression by showing an important mechanism of peer relations, which was missed in previous research.

• The Journal of Korean Society for School & Community Health Education
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• v.19 no.2
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• pp.31-42
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• 2018

Objectives: This study was conducted to analyze the mediating effect of self-identity on the relationship between aggression and school life adaptation of early adolescents. Methods: This study used the 5th-year data of the Korean Children & Youth Panel Survey (KCYPS) including 159 middle school 2nd students from single-parent families. The data was analyzed with open source statistics program R 3.5.0 to determine whether self-identity had a mediating effect on school life adaptation as an independent variable. Results: A moderate correlation was found among aggression, self-identity, and school life adaptation. As a result of the Sobel test, self-identity of early adolescents demonstrated a significant mediating effect on the relationship between aggression and school life adaptation. Conclusions: Given the significant mediating factor of self-identity, the strategies for early adolescents to boost their overall school life adaptation should be considered through intervention programs that help to enhance their self-identity.

• Journal of the Korean Society of Child Welfare
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• no.59
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• pp.87-114
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• 2017

This study aimed to examine whether adolescents' self-esteem mediates the relationship between adolescent-teacher relationship and the intrinsic life goals of adolescents. This study used 1,776 cases from the sixth-wave data of the Korean Children and Youth Panel Survey (KCYPS). This study conducted a hierarchical regression analysis and a Sobel test to examine whether the mediation effect was significant. Primary findings are summarized as follows: First, adolescents who had a good relationship with their teacher were more likely to have better intrinsic life goals. Second, adolescents who had a good relationship with their teacher were found to have higher levels of self-esteem. Third, the effect of adolescents' relationship with teachers on intrinsic life goals was found to be partially mediated by self-esteem. This study concludes with implications, limitations, and suggestions for future research.

• Journal of Internet Computing and Services
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• v.18 no.4
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• pp.89-97
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• 2017

The purpose of the present study was to estimate the effect of adolescents' depression on cell phone dependency and to identify mediating effects of parenting style and peer isolation. The study used data from the $6^{th}$ waves of 2015 KCYPS(Korean Children and Youth Panel Survey). Structural Equation Model(SEM) was conducted to examine the mediating effects of parenting style and peer isolation. The results showed that adolescents' depression had positive effects on cell phone dependency. In addition, the relationship between adolescents' depression and cell phone dependency was partially mediated by parenting style, not mediated by peer relationships. Based on these findings, further suggestions are provided to reduce adolescents' cell phone dependency by decreasing parent's over-involvement and improve adolescents' self control opportunities.

• Journal of Convergence for Information Technology
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• v.9 no.11
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• pp.171-179
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• 2019

This study aims to examine whether a Parent's Neglecting Attitude affects an Adult Media Immersion and Adolescent' Dependence on mobile phonehas a mediating effect. To achieve this goal, the first year of middle school panel of 'the 6th Korean Children and Youth Panel Survey(KCYPS)' was utilized. To verify the mediating effect of Adolescent' Dependence on mobile phone in the relationship between Parent's Neglecting Attitude by Adolescents and the Adult Media Immersion, Baron & Kenny's mediating effect analysis method was conducted and the analytical findings are shown below. According to this study, first of all, more the Parent's Neglecting Attitude rise to rise the Adult Media Immersion. Second, the Adolescent's Dependence on mobile phone partly mediates the Adult Media Immersion. The practical implications of this results are below : First, we need to make a policy and legal effort to improve the relationship between parents and children. Second, there is a need to practice professional programs in schools, focusing on school social worker. Third, Revision of relevant laws limiting access to adult media is necessary.

• Human Ecology Research
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• v.56 no.2
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• pp.145-156
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• 2018

This study investigates the effects of over-parenting behavior and peer-alienation on adolescents' school adjustment and explores the mediating effects of smartphone dependency on the above relations. The subjects were 1,882 first grade students in middle school selected from the 7th year data of the 2010 Korea Children and Youth Panel Survey (2010 KCYPS). Data were analyzed by descriptive statistics, Pearson's correlation, structural equational models, and Sobel test with SPSS 21.0 and Amos 18.0. The findings were as follows. First, there was no significant difference in the school adjustment according to gender. However, boys were higher in the perception of over-parenting behavior and peer-alienation, and girls were higher in smartphone dependency. Second, peer-alienation and smartphone dependency had negative impacts on the school adjustment. But over-parenting behavior had no significant effect on school adjustment. Third, smartphone dependency played a mediator role between over-parenting behavior and peer-alienation as well as the school adjustment. Fourth, there were no significant differences between boys and girls in the relations among over-parenting behavior, peer-alienation, smartphone dependency and school adjustment. But there was a slight difference in influence. The findings of this study suggest that interventions on how to use smartphone correctly are important for improving adolescents' school adjustment. In addition, gender differences in school adjustment should be considered for a better understanding.

• Journal of Convergence for Information Technology
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• v.11 no.2
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• pp.130-137
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• 2021

The purpose of this study is to explore methods to prevent and improve the problem of overdependence on smartphones by analyzing the differences in satisfaction with college life satisfaction of freshmen. For this, data on freshmen of KCYPS were extracted and used. The data were analyzed using non-hierarchical cluster(K-means) analysis, T-test, one-way ANOVA, and Scheffé tests. The results of this study are as follows. First, it has been shown that freshmen who are overdependent on smartphones experience inconvenience in their daily life, withdrawal and anxiety, and resistance. Second, there is no significant difference in the level of satisfaction with college life according to gender(t=-.015, p<.05). Third, it is shown that the level of satisfaction with college life of overdependent freshmen on smartphone is significantly lower compared to that of average and moderate dependent freshmen. Based on the results, it was suggested that university-level efforts such as emotional support and learning strategy support are needed for freshmen who are overdependent on smartphones.

• Journal of Convergence for Information Technology
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• v.9 no.8
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• pp.214-220
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• 2019

The purpose of this study was to identify the relationship between self-identity, Career choice factors and employment preparation activities of college students. The research subjects were the group of 2091 college students who participated in Korean Children Youth Panel Survey(KCYPS) as 7th graders. Their 7th year data in 2016 were analyzed by using SPSS 21.0, descriptive statistics, correlation analysis and regression analysis. Self identity was found significant and positive correlations between career choice factors and not employment preparation activities. and It was found that their self-identity of college students exerts a statistically significant effect on their career choice factors but not on their employment preparation activities. The research result is expected to help arrange detailed educational programs and/or self-identifying programs to help college students choose a career choice and prepare for employment-seeking activities.

• The Journal of the Korea Contents Association
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• v.20 no.12
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• pp.406-416
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• 2020

The purpose of this study is to confirm the effect of parents' positive and negative parenting attitudes perceived by children on smartphone dependence. In addition, it is to verify whether aggression and social withdrawal play a mediating role in the relationship between parental attitude and dependence on smartphones. In order to achieve this goal, the data of the "Korean Children and Youth Panel Survey 2018(KCYPS 2018)" were used for analysis. The sample group is 2,399 "elementary school students 4 cohort". The research results of this study are as follows. First, it was found that autonomy support and coercion had a negative effect on aggression of children, but rejection and inconsistency had a positive effect on aggression. Second, it was found that inconsistency and rejection had a positive effect on children's social atrophy, but coercion had a negative effect. Third, it was found that aggression had a positive effect on children's dependence on smartphones, but social withdrawal had no significant effect. Fourth, it was found that autonomy support, rejection, coercion, and inconsistency indirectly affect children's dependence on smartphones through aggression. In this study's conclusion, practical implications for lowering children's dependence on smartphones were suggested.