• International Journal of Advanced Culture Technology
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• v.9 no.4
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• pp.237-247
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• 2021

The purpose of this study is to investigate the influences on the understanding and academic achievement in general chemistry according to chemical grades in high school and College Scholatic Ability Test. We investigated the difference between the completed subjects in high school and the elective subjects in the Test, degree of understanding of the general chemistry according to the subjects completed in high school, and the effects on the academic achievement of general chemistry by dint of the chemical grades in high school and the Test, etc. By the results of the student's perception survey, most of the students choose Chemistry I at the Test. It was found that the understanding of general chemistry was greatly affected by the chemical elective subjects of high school. Chemical grades in high school and the Test were found to have a significant influence on academic achievement of general chemistry.

• Journal of Fashion Business
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• v.9 no.1
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• pp.89-98
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• 2005

Due to the fast changing social and physical environment, the clothing behaviour of elementary school students should have been changed. Since previous research was completed a long time ago, new research must be conducted to understand the relationships of the clothing behaviour of elementary school students in terms of the time of research, gender and grades. Third and sixth grades in Susan were sampled in 2002; the secondary data in 1988 was used. Factor analysis and Lisrel's group analysis were conducted. The results indicated as follows: 1. As there was an increased interest in clothes, the comfort of the clothes was decreased at the higher grades in 1988, and the low and high grades in 2002, and the clothes of boys in high grade increased in the manageability in 2002, but nor with boy students in the low grade neither all types of students in 1988. 2. As there was an increased manageability in clothes, all types of girl students became more independence in choosing their own clothes. However, boy students in the low and high grades only increased their independence in choosing their own clothes in 1988. 3. As there was an increased comfort of clothes, there was not a significant relationship with the independence of students for choosing their clothes concerning the gender, the grades and the period of research. 4. As there was an increased interest in clothes, the low grade girl and boy students in 1988 increased in their independence in choosing their clothes. However, the high grade boy students in 1988 significantly decreased their independence. Thus there are different results in the clothing behavior in the elementary school student concerning the time of study, gender and grades.

• Child Health Nursing Research
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• v.8 no.3
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• pp.334-343
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• 2002

This study was aimed at primarily to develop a tool to evaluate sexuality education and secondarily to test effectiveness through application of developed evaluation tools in elementary school. The results from this study were summarized below: 1. On the basis of targeting the lower grades (1st- 3th year) and the higher grades (4th-6th year) elementary school students' sexuality education guidebooks published by Korea Ministry of Education & Human Resources Development, 71 preliminary items targeting the lower grades, 90 preliminary items targeting the higher grades were developed. 2. Through the validity test about the contents of the preliminary items three times, the items were regulated to 65 items targeting the lower grads and 57 items targeting the higher grades. And then, the preliminary items were re-regulated to 40 items separately. Then, pre-test which targeting each 30 students was enforced. 3.Finally, the evaluation tools for sexuality education that consisted of 40 items targeting the lower grades and the higher grades were developed. 4. eliability test of the developed tools, sexuality education evaluation tools showed alpha coefficient of internal consistency were 0.8355 (for the use of the lower grades) and 0.8881 (for the use of the higher grades). 5. o apply the developed sexuality education evaluation tools, 10-times sexuality education were carried out class unit and pre-post test were done using same questionnaire, which contains developed tool, there were significant difference in low grade (t=16.548, p=0.000), high grade (t=14.773, p=0.000). The results of this study suggest that the evaluation tool for sexuality education in elementary school may be a useful tool with a high degree of reliability and validity. In this sense, the evaluation tool for sexuality education developed by this study can be effectively utilized in Korea elementary schools.

• The Journal of Korean Society for School & Community Health Education
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• v.17 no.1
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• pp.1-10
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• 2016

Objectives: The purpose of this study was to identify factors affecting school resilience among middle school students. Methods: The 388 survey samples were divided into high level group, middle level group and low level group in terms of the self-rated academic grades. Data were analyzed with $x^2$, ANOVA and regression analysis. Results: First, self-rated health, self-competence and school resilience were significantly different by academic grades. Second, the high and middle level group of self-rated academic grade showed the effect of self-competence(sport competence, self-worth) on school resilience. Conclusions: It was suggested to develop physical, mental and social health programs and policies were required for improvement of self-competence and the school resilience.

• International Journal of Advanced Culture Technology
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• v.11 no.1
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• pp.376-388
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• 2023

After a longitudinal analysis of the data on the college entrance examination of students enrolled in the Department of Chemistry Education at Gyeongnam from 2014 to 2021, the effect on the academic achievement of general chemistry according to the type of college entrance examination was studied. And the impact on the academic achievement of general chemistry according to the type of admission screening in face-to-face and non-face-to-face teaching-learning was also studied. As a result of analyzing the academic achievement of general chemistry by admission process, students admitted through occasional screening showed relatively high grades of A and B at 88.7%, and the ratio of grades of 1~3 of chemistry I in high school was high. On the other hand, in the case of students admitted through regular admission, the ratio of grades of A and B in general chemistry was very high at 94.3%, and the ratio of grades of 3~4 in chemistry I of the College Scholastic Ability Test was high. As a result of analyzing the academic achievement of general chemistry by class type and admission process, it was found that the grades of chemistry I by face-to-face classes had an effect on the academic achievement of general chemistry in non-face-to-face classes. In both admissions, the academic achievement of general chemistry by face-to-face classes was relatively higher than that of non-face-to-face-to-face classes.

• Communications of Mathematical Education
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• v.33 no.1
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• pp.21-34
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• 2019

The purpose of this paper is to investigate the differences of the mathematics anxiety and mathematical achievement of high school students according to math socialization, and to find out which mathematics anxiety causes have more influence on mathematical achievement and how much it is. For this purposes, the problem of this study as follows: firstly, are there any relationship among mathematical grades, mathematics anxiety, interest and math socialization? secondly, are there any math socialization mathematics predict to mathematical grades, mathematics anxiety, interest? lastly, are there any differences in the mathematical grades, mathematics anxiety, interest according to math socialization level? The subjects of this study consist of 479 students selected for a class of unit, in high schools located in Seoul and metropolitan area, Korea. In this study, for students math socialization, Jung(2002)'s scale was used. Mathematical anxiety & interest, Huh(1996)'s Mathematics Anxiety Scale was used. The collected data were analyzed by using the 24.0 SPSS program. The data were also tested by using the t-test, pearson correlation and multiple regression. The major results of this study were as follows: firstly, math socialization, mathematics anxiety, interest and mathematical grades have significantly related each other, secondly, the multiple regression analyses demonstrated that sub factors of math socialization were the significant predictors of mathematical grades, mathematics anxiety and interest, lastly, mathematics grades, and mathematical anxiety and interest have significant differences depending on math socialization.

• Journal of Engineering Education Research
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• v.15 no.5
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• pp.119-124
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• 2012

The influences of the basic academic skills to the scholastic achievement grades has been researched and we made a test of the basic academic skills(Korean language, mathematic, foreign language) to the students of engineering department in I college in Seoul and analyzed the correlation between the basic academic skills and the scholastic achievement grades. Results show that the scholastic achievement grades has a correlation(r=.456, p<0.01) to the average grade of the basic academic skill test. High level students of the scholastic achievement grades have a correlation(r=.292, p<0.01) to the mathematical department and the others have a correlation(r=.232, p<0.05 and r=.279, p<0.01) to the Korean linguistic department. The results of this study through multiple regression analysis indicate that the scholastic achievement has a relation on Korean language skill. As a result, It is recommendable that the mathematical basic academic skill programs are suggested to the high-level students of the scholastic achievement grades and the linguistic basic academic skill programs to the others. Also, the required basic linguistic subject is needed to the low-level students of the basic academic skills and in this paper, we propose the test and management system for the basic campus-life skills including the basic academic skills and the basic major skills.

• Journal of the Korean Institute of Educational Facilities
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• v.5 no.2
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• pp.57-66
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• 1998

The present, there are no evident standards about facilities of minimum-sized kindergarten and lower grades elementary school. So, there are many serious obstacles that related laws and regulations, planning for facilities and scales in this country. Accordingly, this study proposed the concept, type, and size of minimum-sized kindergarten and lower grades elementary school, in case big cities of high density. 1. The concept of minimum-sized kindergarten and lower grades elementary school is defined to the large scale school and class, that integration of children of kindergarten into lower grades elementary school. 2. The type of minimum-sized kindergarten and lower grades elementary school is classified into branch school type and detached school type. The former is located in the main elementary school, The latter is separated from the main elementary school. And each type is classified into singleness case and attached case. 3. The number of students per minimum-sized kindergarten and lower grades elementary school is hold from two hundred children to three hundred children in 12 classes, but suitability is from one hundred to two hundred children. And class sizes proposed $20{\sim}25$ children in minimum-sized kindergarten and $25{\sim}30$ children in lower grades elementary school.

• Journal of Elementary Mathematics Education in Korea
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• v.15 no.2
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• pp.417-435
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• 2011

Mathematical justification is essential to assert with reason and to communicate. Students learn mathematical justification in 8th grade in Korea. Recently, However, many researchers point out that justification be taught from young age. Lots of studies say that students can deduct and justify mathematically from in the lower grades in elementary school. I conduct questionnaire to know awareness and steps of elementary school students and middle school students. In the case of 9th grades, the rate of students to deduct is highest compared with the other grades. The rease is why 9th grades are taught how to deductive justification. In spite of, however, the other grades are also high of rate to do simple deductive justification. I want to focus on the 6th and 5th grades. They are also high of rate to deduct. It means we don't need to just focus on inducing in elementary school. Most of student needs lots of various experience to mathematical justification.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2005.11a
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• pp.241-250
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• 2005

New product development (NPD) is defined as the transformation of a market opportunity and a set of assumptions about product technology into a product available for sale. Managers charged with project selection decisions in the NPD process, such as go/no-go choices and specific resource allocation decisions, are faced with a complicated problem. Therefore, the ability to develop new successful products has identifies as a major determinant in sustaining a firm's competitive advantage. The purpose of this study is to develop a new evaluation model for NPD project selection in the high -tech industry using support vector machines (SYM). The evaluation model is developed through two phases. In the first phase, binary (go/no-go) classification prediction model, i.e. SVM for high-tech NPD project selection is developed. In the second phase. using the predicted output value of SVM, feasibility grade is calculated for the final NPD project decision making. In this study, the feasibility grades are also divided as three level grades. We assume that the frequency of NPD project cases is symmetrically determined according to the feasibility grades and misclassification errors are partially minimized by the multiple grades. However, the horizon of grade level can be changed by firms' NPD strategy. Our proposed feasibility grade method is more reasonable in NPD decision problems by considering particularly risk factor of NPD in viewpoints of future NPD success probability. In our empirical study using Korean NPD cases, the SVM significantly outperformed ANN and logistic regression as benchmark models in hit ratio. And the feasibility grades generated from the predicted output value of SVM showed that they can offer a useful guideline for NPD project selection.