• 한국환경보건학회지
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• 제47권4호
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• pp.310-319
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• 2021

Background: Humidifier disinfectant exposure is an ongoing issue, and there is still considerable related controversy. Various approaches are needed to secure scientific evidence on the extent of the victims' damages and for the determination of appropriate compensation. Objectives: The purpose of this study was to assess the association between humidifier disinfectant (HD) use and academic achievement in Korean children. Methods: This study used data from the 8th Panel Study on Korean Children in 2015. For the final study, 1,598 cases were used. T-tests and multiple linear regression analyses were conducted to determine whether the use of humidifier disinfectant is a factor that affects academic ability. Results: Children in groups using humidifier disinfectant showed statistically significantly lower scores in all areas of language, including reading, speaking and writing, and statistically lower scores in all areas of mathematics, including counting, addition and subtraction. In the multiple regression analysis results, which control for the effects of various demographic/social variables, the use of humidifier disinfectants showed statistically significant beta coefficients (β: -0.357, p<0.001), negatively affecting children's language ability. As for the 'math' variable, which was created by combining counting, addition, and subtraction scores, the use of humidifier disinfectants as independent variables also showed statistically significant beta coefficients (β: -0.200, p<0.001), negatively affecting children's math ability. Conclusions: The results of the study showed that depending on whether or not humidifier disinfectants were used, there are differences in children's language abilities, such as reading, speaking, and writing, as well as in their mathematical abilities, such as counting, adding, and subtracting numbers. These findings are thought to serve as a scientific basis for extending the perspective from health effects to more diverse areas of demographic and social impact related to humidifier disinfectant damage and compensation.

• 음성과학
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• 제10권3호
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• pp.65-77
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• 2003

This study was aimed at clarifying the effects of sibling-involved .language intervention in children with language disorders. Ten subjects were selected and assigned into two groups (language intervention group with sibling-involvement, and language intervention without sibling-involvement). Group 1 consisted of 5 children with language disorders. Group 2 consisted of 5 children with language disorders without sibling-involvement. To investigate the language and communication ability, Picture Vocabulary Test and the subjects's spontaneous speech sample were analyzed. To compare pre-treatment with post-treatment between two the groups, repeated-measures ANOVA and t-test were used. The results were as follows; First, the language intervention with sibling-involvement was not effective compared to without sibling-involvement in improving the picture vocabulary ability of children with language disorders. There was a significant difference between pre-treatment and post-treatment in the picture vocabulary ability of the two .groups. However, there was no significant difference in the post-treatment between the two groups. Second, the language intervention with sibling-involvement was more effective compared to without sibling-involvement in improving the semantic aspects of language of children with language disorders. There was a significant difference between pre-treatment and post-treatment in the number of semantic relations between the two groups in that group 1 showed a higher improvement than group 2. Third, the language intervention with sibling involvement was more effective in improving pragmatic aspects of language of children with language disorders. There was a significant difference between pre-treatment and post-treatment in the number of communicative intentions of the two groups. And there was a significant difference in the post-treatment between the groups in that group 1 showed a higher improvement than group 2.

• 한국보육지원학회지
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• 제14권4호
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• pp.109-126
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• 2018

Objective: The purpose of the present study was to explore the moderating role of children's verbal ability in the relation between shyness and teacher-child relationships. Methods: Participants were 200 children, their mothers, and their kindergarten teachers. Children's shyness was rated by their mothers and teachers, and children's verbal ability was measured using the language problem solving ability test. And teachers completed a rating scale in order to examine the teacher-child relationship. The collected data were analyzed using correlations and hierarchical multiple regressions. Results: Children's shyness had a negative relation to close teacher-child relationships. And child's verbal ability was significantly related to teacher-child relationships. Hierachical regression analysis indicted to the interaction of child's shyness and verbal ability predicted close teacher-child relationships. Children's shyness, those who demonstrated the lowest level of child's verbal ability, was significantly associated with close teacher-child relationships. Children's shyness had no significant relation to close teacher-child relationships, especially for the highest level of children's verbal ability. Conclusion/Implications: We suggested that verbal ability training for children might be valuable for shy children in order to buffer the link between shyness and teacher-child relationships.

• Human Ecology Research
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• 제54권1호
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• pp.45-56
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• 2016

This study investigates: (1) children's proactive aggression according to age and the emotional condition of the counterpart child, (2) if children's intention attribution, emotional attribution (victim and perpetrator) and language ability influences proactive aggression according to age and the emotional condition of the counterpart child. The subjects were 68 3-year-old and 70 5-year-old children. Each child was individually interviewed with picture cards. Collected data were coded and analyzed in SPSS with frequencies, percentiles, means, standard deviations, repeated measures analysis of variance (ANOVA), t -tests, Pearson correlations and multiple linear regression. The results showed that 3-year-old children showed more proactive aggression and physical aggression than 5-year-old children. They showed more proactive aggression when counterpart child was in a happy condition than in a fear condition. Intention attribution, emotional attribution, and language ability partially affected a children's proactive aggression according to age and the emotional condition of the counterpart child. This study has practical implications for teachers in regards to children's proactive aggressive behavior at child care centers. Teachers use specific to develop advantages as the basis for developing aggression prevention programs that consider emotional and cognitive factors.

• 가정과삶의질연구
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• 제30권2호
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• pp.189-196
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• 2012

The purpose of this study was to investigate trajectories of relational aggression in preschool children. The latent growth curve model was used to examine relational aggression in 3 to 5 year olds. The participants were 3-year-old children recruited from preschools and daycare centers. The children's verbal ability was assessed by interview and teachers completed measurements of negative emotionality and relational aggression. The findings suggest that relational aggression decreased during the preschool years. Gender, language ability, and negative emotionality showed positive effects on the initial level of relational aggression. Moreover, gender and negative emotionality had negative effects, however, language ability had positive effects on the change rate of relational aggression.

• 아동학회지
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• 제28권2호
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• pp.39-53
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• 2007

This study investigated the relationship between young children's comprehension and story making(narrative) by age and gender. Subjects were 109 3-, 4-, and 5-year-olds at two child care centers in K Province. Data were analyzed by two-way ANOVA and simple regression analysis. Results showed differences in comprehension between 3-, 4- and 5-year old children and differences in story making ability between 3- and 5-year-old children. Children's comprehension and story making had positive relationships. Specifically, there were significant relationships with children's comprehension and story construct concept, sentence structure level, language(vocabulary and sentence structure). In sum, the results of this study reveal that young children's comprehension ability is partially related to story making ability by age.

• 한국생활과학회지
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• 제19권3호
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• pp.455-469
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• 2010

This study developed and evaluated a school adjustment program for children from multi-cultural families. The program was developed to enhance Korean language ability and adjustment to school for children from multi-cultural backgrounds. 14 preschool children (5 boys and 9 girls) participated in this program. The effect of this program was assessed through a preschool-children's receptive and expressive vocabulary test as well as through a reading ability test. Results showed there was a significant experimental effect (p<.05) in receptive and expressive vocabulary test scores. After the experiment, children showed higher scores in the receptive and expressive vocabulary test than before. Results of the program evaluation revealed this program was helpful for promoting Korean language ability in children and assisted their adjustment to school for children from multi-cultural backgrounds.

• 아동학회지
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• 제8권1호
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• pp.83-112
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• 1987

This study examined the characteristics of the relationship of home environment variables and children's intellectual ability. Two studies were conducted: Study I examined the predictability of home environment variables for children's intellectual ability by children's age and the correlations between environment variables and children's intellectual ability. Study II investigated causal relationships among the variables which are supposed to affect children's intellectual ability. The subjects of this study were 240 children at age four, six and eight attending nursery schools, kindergartens and elementary schools and their mothers. Instruments included the Inventory of Home Stimulation (HOME), inventory of sociodemographic variables, and the K-Binet scale. The results obtained from this study were as follows: 1) Home environment variables had a significant positive correlation (.36 ~ .78) with children's intellectual ability. 2) The home environmental variables that significantly predicted children's intellectual ability differed according to children's age. That is, play materials, breadth of experience, and quality of language environment were predictive of children's intellectual ability at age four, while parent's education, developmental stimulation, and play materials were predictive at age six. Economic status of the home, need gratification, avoidance of restriction, and emotional climate were predictive at age eight. 3) The causal model of home environment affecting children's intellectual ability was formulated by exogenous variables (parent education and economic status of the home) and by endogenous variables (direct stimulation, indirect stimulation and the emotional climate of the home). 4) The results of the analysis of the causal model showed that the kind of variables that affected children's intellectual ability directly differed according to children's age. That is, direct stimulation and parent's education affected children's intellectual ability directly at age four and six, while the economic status of the home and indirect stimulation affected intellectual ability directly at age eight. The amount of variance that explained children's intellectual ability increased with increase in children's age.

• Child Studies in Asia-Pacific Contexts
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• 제3권1호
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• pp.69-80
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• 2013

The present study examined balanced bilingual children's cognitive and affective perspective-taking and compared them to that of monolingual children. A total of 133 children aged 4 to 5 years and consisting of 73 Korean-English bilinguals and 60 Korean monolinguals were tested with cognitive perspective-taking and affective perspective-taking tasks. Balanced bilinguals were screened through general language ability tests in both English and Korean. Participant backgrounds were collected through a parent questionnaire. Results showed significant differences in affective perspective-taking between bilingual and monolingual children, demonstrating that bilingual children outperformed monolingual children. Although there was no difference in cognitive perspective-taking between bilinguals and monolinguals, the result showed that children's cognitive perspective-taking ability develops with age. This study provides basic information about bilingual children's perspective-taking ability and their bilingual advantage.

• Human Ecology Research
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• 제54권6호
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• pp.565-574
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• 2016

This research examined the trajectories of peer rejection in preschool children. This study also investigated the gender differences in the intercept and slope of the trajectories for peer rejection along with the influences of aggression, withdrawal and language ability on the trajectories of peer rejection. A latent growth curve model investigated peer rejection in 3 to 5 year olds. Three hundred and thirteen 3-year-old children were recruited from five preschools and 14 daycare centers. The children's language ability was measured by a Wechsler Preschool and Primary Scale of intelligence verbal test and teachers completed measurements for aggression and withdrawal. A peer nomination inventory was used to assess peer rejection. Children were asked to nominate three classmates who they do not like to play with. The research findings showed that peer rejection decreased during the preschool years. Compared with girls, boys showed higher levels of peer rejection and a slower change rate of peer rejection. Girls who were aggressive showed high levels of peer rejection and a slow change rate of peer rejection. Moreover, girls who had a high levels language showed low levels of peer rejection and a slow change rate of peer rejection. These findings imply that language ability could be a protective factor of peer rejection for girls.