• The Korean Journal of Community Living Science
• /
• v.23 no.4
• /
• pp.447-455
• /
• 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.

• Korean Journal of Child Studies
• /
• v.25 no.5
• /
• pp.41-58
• /
• 2004

This study examined the relations between children's Impulsivity temperament, socio-dramatic play, and self-regulation of 4-year-old children. Subjects were 117 4-year-old children(59 boys and 58 girls) selected from three kindergartens. Each mother completed a questionnaire on her child's temperament. Naturalistic observations of total socio-dramatic play, complex socio-dramatic play, solitary dramatic play and of self-regulation in two classroom contexts - clean-up periods and group circle time - were conducted for obtaining data. Significance was analyzed by Pearson's correlation and multiple regression analysis. Children's Impulsivity was negatively related to self-regulation and to total and complex socio-dramatic play, but impulsivity was positively related to solitary dramatic play. Total and complex socio-dramatic play was positively related to self-regulation while solitary dramatic play was negatively related to self-regulation. Total and complex socio-dramatic play, and solitary dramatic play displayed a mediating role between impulsivity and self-regulation during clean-up periods.

• Speech Sciences
• /
• v.8 no.3
• /
• pp.161-172
• /
• 2001

Ankyloglossia (tongue-tie) limits movement of the tongue connected with feeding and has adverse impacts on both dental health and speech. For the patients with ankyloglossia, surgical intervention is recommended as primary treatment. This study suggests the efficient tool in determining indicatory factors for frenulotomy by quantifying Maximum Lingual Length-Protrusion (MLL-P) with boley gauge, and as a preliminary study, to show the measurement results with normal children using the tool. The subjects were 61 normal children, and the distance (MLL-P) between mandibular central incisor and tongue tip during tongue protrusion was measured with a boley gauge (Digimatic $Caliper^{(R)}$). The results of this study can be summarized as follows: (1) The mean value of MLL-P (N=61 normal children) was 21.44 mm, (2) The mean value of MLL-P was 20.69 mm in males (N=33) and 21.91 mm in females (N=28). There was no statistically significant difference between males and females, (3) The mean value of MLL-P was 19.34 mm, 21.19 mm, 22.33 mm, 22.61 mm for measurement of 3-, 4-, 5- and 6-year-old children, respectively, and (4) The mean value of MLL-P showed statistically significant difference between 3- and 5-year-old children, between 3- and 6-year old children.

• Korean Journal of Childcare and Education
• /
• v.19 no.6
• /
• pp.79-95
• /
• 2023

Objective: This study examines the relationships among four-year-olds' counting skills, their use of number words, and their mothers' use of number words during mother-child free play. Specifically, we assess whether children's use of number words mediates the relationship between their counting skills and their mothers' use of number words during play. Methods: Forty-two 4-year-old children and their mothers were asked to play freely with a given set of toys at their home for 10 minutes. Children also completed a counting skill test. Frequencies of number word use were calculated for mothers and children from transcriptions of the free play. Results: Children's counting skills, the frequency of their number word use, and their mothers' frequency of number word use were positively correlated with each other. Additionally, the frequency of children's number-word use completely mediated the relationship between their counting skills and their mothers' frequency of number-word use. Conclusion/Implications: The results suggest that children's use of number language may play a crucial role in the provision of number-related language input by parents, based on their children's math skills. Practical implications of the findings are discussed.

• The Journal of Pediatrics of Korean Medicine
• /
• v.26 no.2
• /
• pp.35-46
• /
• 2012

Objectives The purpose of this study was to find out the characteristics of children patients who had been treated in the Oriental Medical Hospital due to traffic accidents. Methods The study was carried out with 121 children patients who visited the Oriental Medical Hospital from April 2011 to March 2012 and was analyzed by reviewing the patients' charts. Results In the distribution of sex the ratio between boys and girls were similar, but regarding the age, 0~6 year-old group was more than that of 7~15 year-old group. In the traffic accident patterns, 87.6% of the entire children patients were injured by car crash. The highest type in the collision between cars was rear-ending impact. The most patients (48.8%) visited our hospital for oriental medical treatment in less than 3 days after the traffic accident. The number of the first visitors in the Oriental Medical Hospital were 77 (63.6%) and those who visited other western hospitals before and were 44 (36.4%). The most frequent duration of admission and treatment in OPD was less than 7 days. Sleeping disorders (37.1%) were diagnosed the highest in 0~6 year-old group and C-spine sprain (49.0%) was diagnosed the highest at 0~7 years-old group. Herb medications were prescribed to relieve anxiety for 0~6 year-old group and for 7~15 year-old group, those were prescribed to activate blood eliminating phlegm and to normalize Qi flow. The highest effective treatment period was less than 7 days. Conclusions This data suggested that the oriental medical care could be more effective in treating children victims of traffic accidents by confirming many different symptoms depending on the age.

• Korean Journal of Human Ecology
• /
• v.22 no.1
• /
• pp.17-27
• /
• 2013

The purpose of this study is to investigate children's liquid conservation concept according to their ages and task-situations in the water evaporation phenomenon. Thirty from each 4-, 6- and 8-year-old age groups (total of 90 subjects) were selected for this study. The subjects were recruited from two day-care centers, a kindergarten, and an elementary school, in Seoul. Statistical methods used for data analysis were frequencies, percentiles, means, standard deviations and repeated measures ANOVA. As a result, there was a significant difference in children's liquid conservation concept in the evaporation of water according to their ages and task-situations. 8-year-old children showed levels of cognition than 4- and 6-year-olds. Children showed higher levels of cognition in the task of drying than in the task of water level changes.

• Korean Journal of Child Studies
• /
• v.18 no.1
• /
• pp.53-63
• /
• 1997

The purpose of this study was to investigate the relationship between age, internal state information, and narrative structure. Another purpose was to examine how the kinds of replica play and story props affect the theme of children's narratives. The subjects were 36 4-and 5-year-olds. Children's narratives were audiotaped and analyzed accordmg to narrative structure, themes and internal state factors. The results indicated that 5-year-olds showed well organized narrative structure such as a descriptive narrative and a primary plotted narrative whereas 4-year-old presented no response and a descriptive narrative. Also, 5-year-olds used more internal state information in the narratives than 4-year-olds. The replica figures serve to remind the chiidren of story themes: the children with police props presented negative themes while children with playground props showed positive themes.

• Korean Journal of Child Studies
• /
• v.12 no.1
• /
• pp.78-90
• /
• 1991

This study investigated the relation between oral counting and numerical abilities of young children. The subjects were 33 four-year-old children and 47 five-year-old children from 2 preschools and 2 kindergartens in Kwangju. The test was individually administered in an empty classroom or a hallway by using counting buttons and number cards. The data were analyzed by t-test, Pearsons correlation and multiple regression analysis. The results indicated that (1) older children did better than younger children in oral counting. (2) but the older children did not do better than the younger children in the numerical abilities, (3) the numerical abilities of young children differed according to the degree of oral counting, and (4) the oral counting of young children was one significant predictor of numerical abilities. Findings support the inclusion of activities for oral counting in kindergartens.

• Journal of the Korean Home Economics Association
• /
• v.45 no.3
• /
• pp.71-86
• /
• 2007

The purpose of this study was to investigate North Korean child defectors and South Korean children's pro-social moral reasoning, pro-social decision-making, moral reasoning and moral judgement on violence. The participants were 82 North Korean child defectors and 186 South Korean children in Seoul and Kyunggi Province. All respondents answered self-report questionnaires including 6 stories of pro-social moral conflicts and 4 stories of moral conflicts on violence. Data were analyzed by independent sample t-test, $Scheff{\acute{e}}$ test, repeated measure ANOVA and one-way ANOVA. The major findings were as follows. First, North Korean child defectors showed a bigger difference between the level of pro-social moral reasoning in close relationship situations and that in distant relationship situations than South Korean children did. In the 11-13 year old group, North Korean child defectors showed lower level of pro-social moral reasoning than that of South Korean children. Second, children showed more helping responses in close relationship situations than in distant relationship situations. The 11-13 year old group Children also showed more helping responses than the 14-16 year old group did. Third, 11-13 year old South Korean children showed a higher level of moral reasoning on violence than the North Korean child defectors did. Finally, North Korean child defectors judged violence with a justifiable intention as being more wrong than South Korean children did.

• Phonetics and Speech Sciences
• /
• v.10 no.4
• /
• pp.53-66
• /
• 2018

This study investigated the development of English phonological awareness in preschool children based on a longitudinal study. It carried out a phonological matching task, mispronunciation task, articulation test, explicit phoneme awareness task, rhyme matching task, and initial-phoneme matching task for three-, four- and five-year-old children. A letter knowledge test was also added to the tests for the 5-year-old children. The results revealed that the development of phonological awareness follows a progression of syllable, then onset and rhyme, then phoneme. It was also revealed that language skills such as vocabulary, detection of mispronunciations, and articulation were partially related to the development of phoneme awareness. Finally, we also found that letter knowledge partially affected the children's development of phonological awareness.