• 대한가정학회지
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• 제41권1호
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• pp.77-91
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• 2003

The purpose of this study was to explore the effects of children's perception of communications with mothers and self-control on game addiction. The subjects were 739 children of 4th, 5th and 6th grade. The subjects rated themselves on questionnaires regarding communications with mothers, self-control and game addiction scale. The major findings of this study were as follows: 1) 6th grade children addicted more than 4th and 5th grade children. And boys addicted more than girls. 2) Sex had a direct and indirect effect through children's perception of problematic communications with mothers and self-control on game addiction and was the first contribution factor Children's self-control had a first direct negative effect on game addiction. 3) Children's perception of problematic communications with mothers had a direct positive effect and an indirect positive effect through self-control on game addiction. Grade had a direct positive effect and an indirect positive effect through children's perception of open and problematic communications with mothers and self-control on game addiction. Children's perception of open communications with mothers had a direct positive effect and an indirect negative effect through self-control on game addiction.

• 복식
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• 제56권1호
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• pp.97-105
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• 2006

The dyeability and antibacterial activity of fabrics dyed with lavender extract were analyzed. The results obtained are as follows. The surface color of all the dyed fabrics was tinged with green or yellow of a slight red tint. In the test results of dyeing colorfastness, the colorfastness to sunlight of the dyed fabrics which is both not treated with a mordant and treated with a K2Cr2O7 mordant was excellent with 4th grade of colorfastness. The others showed below 2nd grade. The colorfastness to laundry showed, as most of dyed fabrics were 4th-5th grade, relatively excellent results. The colorfastness to perspiration showed different results respectively according to the kind of both dyed fabrics and mordants. The colorfastness to crocking of the dyed both cotton and silk fabrics showed the excellent result of 4th-5th grade. The colorfastness to dry cleaning of all the dyed fabrics was excellent with 4th-5th grade. In the test results of antibiosis, the dyed fabrics of both cotton and silk didn't show the significant decrease rate for the fungus called Klebsiella pneumoniae. For the fungus called Staphylococcus aureus, the dyed cotton fabric showed the decrease rate of $98\%$ and the dyed silk fabric showed the decrease rate of $50\%$. For the fungus called Chaetomium globosum, the dyed fabric of cotton didn't show the significant antibacterial efficacy, but the dyed fabric of silk showed the significant antibacterial efficacy for the mold fungus called Aspergillus niger.

• 한국학교보건학회지
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• 제28권3호
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• pp.200-210
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• 2015

Purpose: This study aimed to examine the use of smart phones and their relationship with self-efficacy and academic achievement among students in 5th to 6th grade. Methods: 954 students in $5^{th}$ to $6^{th}$ grade were selected from three elementary schools in K City through purposive sampling. Data of 591 respondents were analyzed by $x^2$ test, ANOVA, correlation analysis and multiple regression analysis using the SPSS/WIN program. Results: First, 64% of the students possessed a smart phone and female students used their phone more than male students. 47.5% of the students said they first used a smartphone in their $5^{th}$ grade and 11.7% said in their 6th grade. Second, heavier use of smart phones was related to a lower level of self-efficacy (p<.001). Third, the more the students used a smart phone, the less they achieved in academic performance (Korean language: p<.001, mathematics: p<.01). Finally, the biggest factor influencing smart phone addiction was longer use of smart phones. In addition, lower self-efficacy and lower ability to adapt to difficult tasks were the factors influencing the increase in smart phone addiction. Less use of smart phones and higher self-efficacy resulted in higher achievement in academic performance. Conclusion: It is essential to decrease students' use of smart phones and improve their self-efficacy and academic performance. Intervention programs to reduce the use of smart phones should include a profound interest, a personality-oriented educational environment and sufficient dialogues with students at home, schools and the local society, beyond simple regulations to prevent adverse effects.

• Child Health Nursing Research
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• 제6권2호
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• pp.167-185
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• 2000

The goal of this research was to provide the basic data of sexual education for late schooler by finding out what they want to know about sex, or to see, if any, its relevancy between female and male students and between each grade. The sample for this research was a total of 453 students in 4th, 5th and 6th grade from 12 different classes at two elementary schools which were located in C city and in B province. The children were requested to write down three points on what they want to know or to learn most about sex, and their answers were put through two analytical stages in order to classify and to examine. The followings are the conclusions from the data. 1. The female cluster took 44.2% out of the whole sample, and there were 151 students per each grade. The specific girl ratios for each grade were 42.4%, 50.3% and 39.7% respectively. 2. It was noted that a total of 1,195 questions were gathered from the students writings, 45% of the questions was raised by the female students. The 4th grade students raised 432questions (43.8% by the girl) while the 5th. and the 6th grade students raised 387 (53.2% by the girl) and 376 questions (42.3% by the girl) respectively. The average number of questions per students was 2.6 while the female students raised 2.8 questions which was more than the average 2.5 questions by male students. It was the 4th grade female student cluster, which raised the most question (3.0) while the 6th grade male students raised the least question (2.4) in average. 3. The questions raised by the children could be divided into seven categories of the knowledge need on sex. They were Reproduction (310 questions, 25.9%), Sexual Culture (230, 19.2%), Concept of sex (125, 18.0%), Changes of Puberty (172, 14.4%), Sexual Health (119, 10.0%), Anatomy and Physiology of Reproductive System (78, 6.5%) and Sexual Tendency and behavior (71, 5.9%). 4. 'Reproduction' was the most frequently raised questions not only by both sex groups but also by the 5th grade students. Both sexes in the 4th grade showed the highest interest in Sexual Culture while it was Changes in Puberty for the both sexes in the 6th grade. The knowledge need on sex of the children indicated what they understand sexuality. They apprehended sex as sex, gender and sexuality in an inclusive way. They showed a major interest in the biological sex and the sexual activities. It seems that the children managed to understand clearly the meaning of gender, furthermore, they even pointed out that the streotyped sex role, patrimonial system and the sexual discrimination were unreasonable. The students possessed not only the least but also the most negative understanding in regard of sexuality. Two suggestions were made from the above conclusions for the practical sex education as well as its research. 1. For the practice: The sex education for the elementary upper grade school student should be relevant with their cognitive characteristics, also it should be more specific on the reproductive organs of both sexes, the actual scenes of the pregnancy and child delivery procedures. The gender concept should be added to the biological sex education, which will lead them to understand the unreasonableness of today's male-superior phenomenon and correct them. It is also necessary to develop educational programs for this age group so as to help them to understand sex in the sense of sexuality as well. 2. For the research: It is not easy to draw out a through conclusion since this study was carried out as one-time data collection. Yet it is undeniably helpful for the sex education if we can understand what the children want to know about sex, how much they know about it by conducting deep-interview researches through a small number of sample.

• 대한가정학회지
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• 제47권1호
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• pp.65-73
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• 2009

The present longitudinal study examined reciprocal influence between self-esteem and academic achievement using cross-lagged autoregressive model. This study employed data(four wave) from Korea Youth Panel Survey. Participants were 300 students(143 boys, 157 girls) who were 4th graders in 2004 and 7th graders in 2007. The results of this study indicated that 4th graders' self-esteem influenced 5th graders' academic achievement, in turn, 5th graders' academic achievement influenced 6th graders' self-esteem. However, students' self-esteem in 6th grade did not influence their academic achievement during 7th grade. Conversely, 6th graders' academic achievement influenced 7th graders' self-esteem.

• 한국콘텐츠학회논문지
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• 제22권6호
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• pp.116-124
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• 2022

본 연구의 목적은 초등학교 5, 6학년 영어 교과서에 수록된 읽기 지문의 이독성을 분석하여 학년 간 수직적 연계성과 출판사 간 수평적 연계성을 살펴보는 것이다. 이를 위해 10종의 교과서에 수록된 읽기 지문을 코퍼스로 구축한 후, Coh-Metrix를 통해 각 교과서에 수록된 읽기 지문의 이독성을 분석하였다. 또한 일원배치 분산분석을 통해 산출된 이독성에 학년 간, 출판사 간에 통계적으로 유의한 수준의 차이가 있는지 살펴보았다. 이를 통해 얻어진 결과는 다음과 같다. 첫째, 동일 학년 내 읽기 지문의 출판사간 난이도 차이를 분석하여 수평적 연계성을 살펴본 결과 RDL2 지수에서 5학년 교과서간에 유의한 차이가 있었다. 둘째, 출판사 내에서의 학년 간 수직적 연계성을 분석한 결과 FRE와 FKGL 기준으로 교과서 A의 난이도가 5학년에 비해 6학년에서 높았으며, 이는 통계적으로 유의한 수준의 차이였다. 반면 RDL2를 기준으로 했을 경우 교과서 B의 난이도가 5학년에 비해 6학년에서 더 낮아지는 결과를 보았다. 이러한 결과는 FRE와 FKGL은 문장 길이와 단어 길이 중심으로 이독성을 산출하는 반면, RDL2는 내용어 중복, 단어 빈도 수, 문장의 통사적 유사성 등을 기초로 하고 있기 때문으로 보인다.

• 인터넷정보학회논문지
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• 제15권5호
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• pp.25-32
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• 2014

현대 지식정보사회에서 한 나라의 경제력은 IT 산업과 기술에 크게 의존하고 있다. 이러한 관점에서 대부분의 국가들은 새롭고 혁신적인 IT 기술을 개발함으로써 IT 산업을 부흥시키려고 노력하고 있다. 전통적으로 IT 산업에 있어서는 단지 소수의 뛰어난 인재가 전체 산업을 주도하고 있다. 따라서, 조기에 정보영재를 판별하고 양성하는 것은 IT산업의 육성에 있어서 매우 중요하며 필요하다. 본 논문의 목적은 정보영재아동의 학년별 학업능력을 조사하는 것이다. 이러한 목적을 위해 본 연구는 초등학교 4학년, 5학년 및 6학년 정보영재아동에 초점을 두고 있다. 본 연구에서는 정보영재의 다양한 능력 가운데서 프로그래밍 능력과 논리적 사고력에 중점을 두었다. 현재까지 정보영재아동의 학년별 차이를 비교하고 분석한 연구는 없었다. 이러한 연구목적을 위해 서울시의 한 대학부설 과학영재교육원에 재학한 정보영재아동들을 대상으로 연구하였으며, 8년 동안의 성적이 분석되었다. 통계처리결과로부터 정보영재아동의 프로그래밍 능력과 논리적 사고력에 있어서 4학년, 5학년 및 6학년 간에 유의미한 차이는 없다고 결론을 내릴 수 있다. 이 연구결과는 향후 정보영재교육에 있어서 교육내용, 교육과정 및 법과 제도를 제안하는 데 있어서 도움이 될 것으로 기대한다.

• 한국환경교육학회지:환경교육
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• 제21권4호
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• pp.40-66
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• 2008

The purpose of this study is to develop and applicate textbook relevant to school indoor air quality. To achieve the purpose, concrete study process are as follows. First, the survey research to teachers, supervisors, and students is conducted to grasp cognition of subjects in elementary school and management situation about school indoor air quality. Second, contents relevant to indoor air quality on textbooks in the 7th elementary curriculum and subsidiary textbooks is analysed through reference study. Third, environmental textbook relevant to school indoor air quality for 5th and 6th grade in elementary school is developed, applicated, and inspected its effect on the basis of implications from results of survey and reference study. The results of this study are as follows. First, the result of survey concerning school indoor air quality showed that three groups had negative attitude for its management even though they thought that it affected human's health and study by and large. Student group thought that each of students itself was a little influence to school indoor air pollution though all of three groups answered that' activities of students' was its main source. Efforts of students to improve school indoor air quality was not much, and its main reason was that they didn't know about school indoor air pollution well. Second, result of analysis into textbooks on the 7th elementary curriculum and subsidiary textbooks, contents concerning indoor air on the 7th elementary curriculum textbooks was little or nothing. And it trended to be included to subsidiary textbooks. However, education textbooks about indoor air for elementary students was insufficient still. Third, environmental textbook relevant to school indoor air quality for 5th and 6th grade in elementary school was developed. It was constructed for themes - importance, sources, effects, and management of school indoor air quality. After its application to the 6th grade students in elementary school, it was meaningful in the level of p<.05 that the result of knowledge and awareness in the pre-post test within experiment group. However, all of the results in comparison group didn't represent statistically meaningful difference. In conclusion, environmental textbook developed by necessity of education about school indoor air quality will play a role as useful tool for the 5th, 6th grade students in elementary school to understand relation of quality of health and life and school indoor air quality, to have attitude to make an effort to manage it by develop right awareness about it.

• Human Ecology Research
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• 제59권3호
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• pp.341-351
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• 2021

The purpose of this study was to examine the longitudinal relationships between Korean adolescents'mobile phone dependency, trajectories of depression, and self-regulated learning abilities. To achieve these goals, structural equation modeling analysis was conducted, using the 3rd, 5th and 7th wave of the data on 4th graders taken from the Korean Children and Youth Panel Survey. The results can be summarized as follows. First, growth-curve longitudinal analysis indicates that depression in 6th through 10th grade has increased. Second, mobile phone dependency among adolescents at 6th grade has a significant effect on both the initial value and the rate of change in depression. Also, the initial value and the rate of change in depression have significant relationships with mobile phone dependency at 10th grade. Moreover, both increased levels of mobile phone dependency and the rate of change in depression significantly influence adolescents'self-regulated learning abilities at 10th grade. Based on a longitudinal data set, these findings demonstrate the causal relationships between Korean adolescents'trajectories of depression and their mobile phone dependency. The findings also provide a comprehensive framework with implications for adolescents'development through an understanding of the relationships between adolescents'depression and mobile phone dependency, which impact their self-regulated learning abilities.

• 한국과학교육학회지
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• 제15권4호
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• pp.452-458
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• 1995

Science textbooks are very important materials in order to know elementary science learning in Japan and Korea. In this research the 5th grade science textbooks in Japan and Korea are analyzed by an analyzing category. The analyzing category is consisted of knowledge and scientific inquiry. Knowledge is divided by fact, concept, and rule. Scientific inquiry is divided by problem cognition, variable control, experiment planning, observing, measuring, categorizing, inferring, data transformation, predicting, correlation, cause and effect, result, communication, which are 13 subcategories. Analyzing methods are counting the frequency of each subcategory and tabulating the data. The results of this study are: 1. The frequency of scientific inquiry appeared in Korean 5th grade science textbooks is three times more than that in Japanese textbooks. 2. In scientific inquiry category, Japanese science textbooks emphasized observing, predicting, measuring and problem cognition; Korean science textbooks emphasized experiment planning, observing and problem cognition. 3. In knowledge category, fact subcategory is mostly emphasized in both countries.