• 대한가정학회지
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• 제28권2호
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• pp.107-118
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• 1990

The purposes of this study are to investigate the children's prosocial behavior as related to (1) their perception of parental warmth, control and the relationship of this perception to parent's job status and educational level (2) their siblings (3) children's sex. The subjects were 220 third grade children selected from four elementary schools in Seoul. The instruments were a perception of parental warmth and control scale and a peer rating prosocial behavior scale. Frequencies, percentiles, mean, Pearson's correlation, t-test oneway ANOVA, and Scheffe test were used for data analysis. The major findings are as follows; 1. There were significant relationships between parental warmth, control, and children' s prosocial behavior. The children who perceived more parental warmth and control were rated more prosocial by their peers. 2. Children whose parent's were above college graduates and white collar jobs perceived more parental warmth and control. 3. Children's prosocial behavior were significantly different according ti sibling number, birth-order, and sibling structure. 4. Girls were rated more prosocial than boys.

• 대한가정학회지
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• 제49권3호
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• pp.79-86
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• 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.

• 대한가정학회지
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• 제45권4호
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• pp.87-96
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• 2007

The purpose of this study was to investigate the relationship between the father's emotional expressiveness and verbal controls, and his children's social competency depending on gender. Subjects were 156 five-year-old children and their fathers in 4 private kindergarten in Gyeongi province. The data obtained were analyzed by frequencies, percentiles, means, standard deviations, Cronbach's alpha, t-test, and Pearson's correlations. The major findings of this study were as follows: 1) A significant difference was found between the children's gender in terms of children's external behavioral problems in social competency. 2) There was a negative correlation between the fathers' negative emotional expressiveness and their male children's social competency. 3) There was a negative correlation between the fathers' imperative control under verbal controls and their male children's social competency.

• 한국지역사회생활과학회지
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• 제23권4호
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• pp.447-455
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• 2012

The purpose of this study was to investigate children's conception of liquid conservation according to their ages and tasks in the boiling phenomenon The subjects were thirty 4-year-olds, thirty 6-year-olds, and thirty 8-year-olds recruited from two day-care center, one kindergarten, and one elementary school, in Seoul. Statistical methods used for data analysis were frequencies, percentiles, means, standard deviations and repeated measures ANOVA. As the result, there was a significant difference in children's conception of liquid conservation in the boiling of water according to their ages. 8-year-old children showed higher levels of cognition than 4 and 6-year-olds. There was no difference in children's conception of liquid conservation in the boiling of water according to tasks.

• 아동학회지
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• 제23권1호
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• pp.17-35
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• 2002

The relationship between parent's attitude toward children's emotional expressiveness and children's emotional intelligence(EI) was investigated with the Parent Attitude toward Children's Expressiveness Scale(Saarni, 1990), and children's EI was assessed by a teacher rating scale developed by Kim(1999). The subjects were 121 triads of 3- to 6-year-old children and their mothers and fathers. Data were analyzed by frequencies, percentiles, means, standard deviations, Cronbach's ${\alpha}$, two-way ANOVAs, Pearson's correlations, and multiple regression. Results indicated differences in level of EI as a function of gender and age; differences in both mother's and father's attitudes toward children's expressiveness as a function of children's gender and age; and positive correlation between mother's and father's attitudes toward emotional expressiveness and children's EI. Children's age and parental attitude toward children's emotional expressiveness explained 46.7% of children's EI.

• 아동학회지
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• 제14권2호
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• pp.65-78
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• 1993

The purpose of this study was to investigate (1) the actual reading behavior of Japanese comic books among adolescents, (2) adolescents' perception of violence and sexuality in the comic books, and (3) the effect of Japanese comic books on attitudes toward Japan. Subjects for this study were 109 elementary, 102 middle and 104 high school adolescents. Data were gathered through questionnaires and analyzed by frequencies, percentiles, mean, ANOVA, $Scheff{\acute{e}}$ test and Pearson's correlations. The results were that (1) Reading of Japanese comic books is a prevalent phenomenon among adolescents; (2) adolescents assessed the contents of Japanese comic books favorably; (3) adolescents evaluated Japanese goods as high quality, assessed Japanese culture positively and had favorable perception of the Japanese; (4) there was a positive relationship between the adolescents' evaluation of Japanese comic books and envy of the Japanese.

• 아동학회지
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• 제37권3호
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• pp.135-146
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• 2016

Objective: This study explored the creative thinking styles of children according to cluster analyses and examined group differences in language ability, cognitive ability, and peer relationships. Methods: The study used the data from the 2012 Panel Study of Korean Children by the Korea Institute of Child Care and Education. The participants comprised 1,681 4-year-olds. Data were analyzed via cluster analyses, ${\chi}^2$ distributions, and ANOVA tests. Results and Conclusion: The results from the cluster analyses based on percentiles of the subfactors of K-FCTYC (Korean Figural Creativity Test for Young Children) indicated four clusters: "divergent creative with openness," "non-creative," "divergent creative," and "multiple creative." Additionally, the four clusters differed by gender, language ability, cognitive ability, and peer relationships.

• Communications for Statistical Applications and Methods
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• 제2권2호
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• pp.101-114
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• 1995

In this paper we consider the multiple unit root tests both for the regular and seasonal unit roots based on the Lagrange Multiplier(LM) principle. Unlike Li(1991)'s method, by plugging the restricted maximum likelihood estimates of the nuisance parameters in the model, we propose a Lagrange multiplier test which does not depend on the existence of the nuisance parameters. The asymptotic distribution of the proposed statistic is derived and empirical percentiles of the test statistic for selected seasonal periods are provided. The power and size of the test statistic for examined for finite samples through a Monte Carlo simularion.

• Journal of the Korean Statistical Society
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• 제30권4호
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• pp.667-678
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• 2001

The asymptotic behavior and distribution for quantiles estimators using ranked samples are introduced. Applications of quantiles estimation on finding the normal ranges (2.5% and 97.5% percentiles) and the median of some medical characteristics and on finding the Hodges-Lehmann estimate are discussed. The conclusion of this study is, whenever perfect ranking is possible, the relative efficiency of quantiles estimation using ranked samples relative to SRS is high. This may translates to large savings in cost and time. Also, this conclusion holds even if the ranking is not perfect. Computer simulation results are given and real data from lows 65+ study is used to illustrate the method.

• Communications for Statistical Applications and Methods
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• 제19권2호
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• pp.267-276
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• 2012

Bagai et al. (1989) proposed a distribution-free test for stochastic ordering in the competing risk model, and recently Murakami (2009) utilized a standard saddlepoint approximation to provide tail probabilities for the Bagai statistic under finite sample sizes. In the present paper, we consider the Gaussian-polynomial approximation proposed in Ha and Provost (2007) and compare it to the saddlepoint approximation in terms of approximating the percentiles of the Bagai statistic. We make numerical comparisons of these approximations for moderate sample sizes as was done in Murakami (2009). From the numerical results, it was observed that the Gaussianpolynomial approximation provides comparable or greater accuracy in the tail probabilities than the saddlepoint approximation. Unlike saddlepoint approximation, the Gaussian-polynomial approximation provides a simple explicit representation of the approximated density function. We also discuss the details of computations.