• Korean Journal of Childcare and Education
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• v.11 no.6
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• pp.153-175
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• 2015

The purpose of this study was to find out the current status of smart phone usage, differences of developmental characteristics and time diaries between high- and low- usage groups. The study also tried predicting variables among children's personal and family environment factors in order to classify four year old children in the fifth year Panel Study on Korean Children into the two groups. Data was collected from 435 smart phone users and 157 of them who had started to use a phone before age 3.Frequency analysis, t-test and logistic regression were performed. The results showed that most 4 year old children started to use a phone in their fourth year and used it frequently. The low level groups of girls and all participants showed lower levels of behavior problems, and the low level group of all participants had a longer sleep times than the high level group had. Children's activity and social temperament were identified as predicting variables for classifying children into the two groups. The results suggested the necessity of measures preventing children from excessive smart phone usage in their early years and to consider children's temperament first.

• Korean Journal of Childcare and Education
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• v.11 no.2
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• pp.87-108
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• 2015

The purpose of this study was to investigate the difference in Korean 4-year-olds' cognitive development depending on variables concerning ecological system variables, predictive influences among these variables, and different predictive patterns between working mothers and non-working mothers. The subjects consisted of 998 4-year-olds, derived from the Korean Child Panel data of 2012. The results were as follows: First, 4-year-olds' cognitive development was different depending on their sex, education level of mother and father, mothers' working status, quality of home environment, and mothers' involvement in children's life in their institution. Second, mothers' involvement in children's life in their institution, children's sex, quality of home environment, and mothers' working status predicted 4-year-olds' cognitive development. Third, there was a different pattern of predictive influence among variables according to the mothers' working status. The mothers' involvement in their children's lives in their institution and children's sex was proved to be important in both, but that was more significant in working mothers, and the quality of home environment predicted cognitive development only in working mothers. These results were discussed in terms of necessity of the Korean national policy to support young children's cognitive development efficiently, especially for working mothers.

• Journal of Convergence for Information Technology
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• v.10 no.6
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• pp.109-118
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• 2020

The purpose of this research is to investigate the effects of interaction, gender, and age on preschool children's intimate relationship with entertainment robot dog. For this purpose, two kinds of experiments were conducted for 70 preschool children in day care centers in Seoul. Experiment 1 relates to the interaction with entertainment robot dog, 34 children aged 5 years (17 experimental groups, 17 comparative groups). Experiment 2 was a study on the effects of gender and age. A total of 36 children (pre- and post-group) of 12 children aged 3, 4, and 5 years old were included. This study interviewed the number of distributions and the motivations for distribution by using the "Dividing Game(Distribution Principle)" interview. As a result, firstly the group experiencing the interaction felt more intimate with the entertainment robot dog, and the reason was emotional factor the most(Experiment 1). Second, gender had no significant effect on entertainment robot dog intimacy and age showed a reverted U-shape. The above results are meaningful in that it reveals what kind of factors affecting the intimacy between the preschooler and entertainment robot dog.

• Korean Journal of Childcare and Education
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• v.8 no.5
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• pp.89-110
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• 2012

The purpose of this study is analyzing the preference of young children for the outward appearance of a teacher-aided humanoid robot. The subjects of this study were 180 kindergarten children who were 4 years old. Ninety five children among the subjects were male, and 85 children were female. The instrument used for this study consisted of 15 questions that involved 3 domains; figure, face, and practical use of robot. The major findings of the study were as follows: First, young children preferred a smooth and intimate robot, and one that had a similar size to them. Second, young children preferred a more characteristic face with big eyes. Third, young children preferred a robot which had a contoured body Fourth, young children preferred a robot which had two legs or tank wheels. Fifth, young children preferred a robot that could play with them and be manipulated by them.

• The Journal of the Korea Contents Association
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• v.15 no.8
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• pp.588-597
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• 2015

This study is to distribute 5-year-old nuri curriculum science education contents in child picture books, and to investigate the categorical difference of science education contents between domestic and foreign picture books and among genres. The subjects were 219 picture books for children from 4 to 7, listed in which is published by Children's Book Study Group in 2012 and 2013. The research tool was from the article of 5-year-old nuri curriculum nature study, to analyze the contents of young children science education in the child picture books. Content analysis categories was set to two upper-categories and seven sub-categories. Research data were calculated in the analysis of the frequency and percentage of each item's category by the method of analysis conformity. In conclusion, first, in the analyzed result of the upper categories of young children science education contents in 219 picture books, the frequency appeared in order of 'Curious to maintain and expand', 'Learn living things and the natural environment', 'To explore the investigation technique', 'To enjoy the investigation technique', 'Utilize simple tools and machines', 'To search objects and materials', 'Learn natural phenomena'. Second, in the compared result between the domestic and foreign picture books and among genres, "scientific inquiry" is appeared more than "fostering an attitude of exploration".

• The Journal of the Korea Contents Association
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• v.18 no.1
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• pp.551-560
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• 2018

The purpose of this study was to examine the effectiveness of drama program for early children by using method of meta-analysis. For the purpose of the study, master's theses, doctoral dissertations, and journal articles published in Korea up to April, 2017 were systematically reviewed. As a result, a total of 39 studies were eligible for the inclusion criteria. The mean effect sizes and test for homogeneity of effect size(Q-statistic) were analyzed by using Comprehensive Meta-Analysis software 2.0. The main findings of the study were as follows. First, the average effect sizes for drama program were ES=1.922 of verbal expression, ES=1.898 of emotional intelligence, ES=1.558 of creativity, ES= 1.292 of sociability. Second, by analysing the moderate variables of the effect size for drama program, 'age' of verbal expression, creativity and sociability, 'sessions' of verbal expression were statistically significant. Based on the study results, the research and practice implications were discussed.

• Korean Journal of Childcare and Education
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• v.8 no.4
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• pp.113-136
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• 2012

The purpose of this study was to examine the effects of a picture book-based leadership program on children's leadership. The participants of the study were 76, four- and five-year-old children of two kindergartens located in Seoul. The subjects participated in a 10-week program. The program was conducted once a week, for a total of 10 times during two and a half months. Children's leadership rating scale(Jang & Hwang, 2009) was used in the collection of data by teachers. A pre-post test paired-samples t-test and ANCOVA(analysis of covariance) were conducted to analyze the differences between the experimental group and the comparative group in leadership. The results of this study were as follows: First, there was a significant difference between the experimental group and the comparative group in the leadership scores of 5-year old children of the leadership scores of teachers. Second, there was a significant difference between the experimental group and the comparative group in the scores of challenges and self-confidence, self-control, and problem solving ability among the leadership component factors only among 5-year old children.

• Journal of the Korean Society of Child Welfare
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• no.54
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• pp.79-111
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• 2016

The purpose of this study was to examine the structural models in which early cumulative risk factors affect children's language(indicated by expressive vocabularies) and social development(indicated by peer competence) at age 3 thorough their effects on the home learning environment. To examine the hypothesized models, the data of 1,725 families from the second and the fourth waves of the Panel Study of Korean Children was used. Correlation analysis and structural equation modeling were conducted to test the models. First, the cumulative risk factors at age 1 and 3 were highly correlated, implying the stability of the risk factors over time. The more cumulative risk factors at age 1 predicted the lower level of the home learning environment at age 3, which, in turn, was significantly related to both language and social development at age 3. However, the early cumulative risk factors did not directly influence later developmental outcomes. Moreover, the cumulative risk factors at age 3 were directly related to the child's language development, but neither social development northe home learning environment. In addition, the mediational role of the home learning environment (i.e., cumulative risk factors at age 1${\rightarrow}$home learning environment${\rightarrow}$language and social development) was statistically supported. In conclusion, the early cumulative risk factors in infancy indirectly predicted children's development at age 3 through the home learning environment. The practical implications for the early intervention and support for the families with infants who are experiencing multiple risk factors were discussed.

• The Korean Journal of Coaching Psychology
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• v.4 no.2
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• pp.27-56
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• 2020

The purpose of the study is to investigate the effect of an emotion coaching program using animation(the program) on infant peer competence and communication with teachers in charge (teachers). To this end, 30 infants aged 5 years residing in the Seoul area were selected to form 15 experimental groups and 15 control groups. An emotional coaching program using animation for 15 children aged 5 years in the experimental group was conducted 7 times a week for 50 minutes each. The main contents of the program were organized to name the emotions of children aged 5 years old through various emotion scenes, to recognize my emotions and to empathize with the emotions of others. To verify the effectiveness of the program, peer competence and communication with the classroom teacher (social competency test) were conducted before, after, and after (4 weeks after the end of coaching). As a result, both peer competence and communication with the classroom teacher were significant. And the program continuity was verified. Finally, the implications and limitations of the study through the results of this study, and suggestions for future research were discussed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.8
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• pp.146-159
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• 2018

The purpose of this study was to investigate the effects of Mathematical Activities using 4D-frame on 5-year-old children's mathematical ability and attitude towards Mathematics. For the study, E, K, and Y preschools located in S city were selected: 28 children from Y preschool as the experimental group(I: n=14, II: n=14) and 28 children from E and K preschool as the comparative group(III: n=14, IV: n=14). During the 8 weeks, the experimental group performed Mathematical Activities using 4D-frame and in the comparison group, Nuri-Curriculum's mathematical activities and mathematics-science integration programs were conducted. The analysis of covariance(ANCOVA) was conducted with the pre-test scores of the experimental group(I, II) and the comparison group(III, IV) as covariance. The results showed that there were statistically significant differences between the experimental and comparative groups. Mathematical Activities for Young Children using 4D-frame enhanced 5-year-old children's mathematical ability and attitude towards Mathematics. The results of this study provide an understanding of the efficiency of early childhood mathematical activities using the 4D-frame in early childhood education and provide basic data for the improvement of mathematical ability and attitude of young children and the applicable educational methods at the field.