• Journal of The Korean Association For Science Education
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• v.40 no.3
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• pp.253-269
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• 2020

This study aims to develop items to diagnose pre-service physics teachers' understanding of the conceptual knowledge of modern physics, based on the achievement criteria presented in the 2015 revised national science curriculum, and to identify the validity and reliability of the newly developed items. Data were collected from 467 pre-service physics teachers in the Physical Education Department or Science Education Department (Physics Education Major) of 15 universities across the nation. In this study the content validity, substantive validity, the internal structure validity, generalization validity, and the external validity proposed by Messick (1995) were examined by various statistical tests. The results of the MNSQ analysis showed that there was no nonconformity in the 23 items. The internal structure validity was confirmed by the standardized residual variance analysis, which shows that the 22 items was unidimensional. The generalization validity was confirmed by differential item functioning (DIF) analysis about groups lectured or not modern physics/quantum mechanics. In addition, item analysis and test analysis based on classical test theory were performed. The mean item difficulty is 0.66, mean item discrimination is 0.47 and mean point biserial coefficient obtained was 0.41. These results for item parameters satisfied the criteria respectively. The reliability of the internal consistency of the KR-20 is 0.77 and the Ferguson's delta obtained was δ = 0.972. By Rasch model analysis, the item difficulty (item measures) was discussed.

• 대한공업교육학회지
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• v.40 no.2
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• pp.44-71
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• 2015

This study is aimed to analyze the cognitive level of basic job skill for students, graduates, and teachers in a specialized high school, as well as for workers in a company, and to suggest an optimal educational curriculum by deciding the priority of the basic job skill in education in the field of mechanic, electric electronic semiconductor, and architecture civil engineering construction. This research was undertaken with the use of various statistic skills, the Borich method, and the locus for focus model. Also, this research shall be valued in synthetic understandings for curriculum revising. The educational priority which shall be applied to the mechanic, electric electronic semiconductor, and architecture civil engineering construction at specialized high school was analyzed, and according to this, a new curriculum was suggested. For mechanic, it put its educational priority on Expressing oneself, Problem solving, Self-development, Career development, Managing time, Negotiation, and Understanding technology. For electric electronic semiconductor, its focus was on Managing time, and for architecture civil engineering construction, they emphasized Problem solving, Self-development, Career development, Managing time, and Conflict management.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.11
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• pp.595-603
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• 2016

This study was conducted to identify and analyze the educational needs for key vocational competency in nursing students. The participants were 411 nurse students at five universities and the survey was conducted from June 1 to June 31, 2016. The data were analyzed with SPSS WIN 23.0 using descriptive statistics, a paired T-test, Borich's Needs Analysis, as well as the Locus for Focus Model. Based on the results, the subjects recognized the present level of 'professional ethics,' 'self development' and 'interpersonal skills' to be high and those of 'communication skills' and 'skills for understanding groups' to be low. 'Professional ethics,' 'self development,' 'problem solving skills' and 'communication skills' were the most important sub-elements of vocational competency. A significant difference in recognition levels between present and importance ere found in all components of vocational competency. The four priorities were analyzed based on Borich's needs value. In accordance with the Locus for Focus model, 'communication skills,' 'problem solving,' 'resource management skills' and 'self development' were identified as the highest priority sub-factors of vocational competency to nursing students. Based on the result of this study, it is expected to be used as the basic data to develop the nursing student's vocational curriculum and program.

• Journal of the Korea institute for structural maintenance and inspection
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• v.21 no.3
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• pp.93-101
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• 2017

The shortage of parking lots in aged apartment complexes built from the 1980s to the mid 1990s is serious. When we look at the case of parking lot expansion in the aged apartment complexes, the method of extending the underground parking lot vertically occupies the majority. It is very important to secure the structural safety of the foundations when the existing buildings are enlarged. In the case of underground vertical work, the work space should be narrow, so that a method with excellent safety, environmental and construction properties should be applied. Urban construction is also required to use construction methods and equipment with low noise and vibration. This study analyzed the factors influencing the selection of the foundation reinforcement method for the expansion of the underground parking lot and Weights of influence factors were calculated. The purpose of this study was to analyze the applicability of the foundation reinforcement method. Factors influencing the applicability of the foundation reinforcement method were derived through expert interviews and The AHP technique was used to calculate the weight of the influencing factors. It was evaluated by experts on the applicability of the foundation reinforcement method. It conducted a case study on two types of underground parking lot expansion type and compared the applicability of the foundation reinforcement method.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.5
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• pp.372-378
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• 2016

A mound was constructed to install a caisson and sofa blocks underwater. The mound riprap, which were of uniform grade, size, shape, and specific gravity, formed the foundation for the support superstructure. Also, rubble leveling works were performed before installing structures such as caissons. In this study, underwater construction equipment was developed with a remotely controlled operating system and underwater environment monitoring system for unmanned underwater rubble leveling work. The performance of the developed equipment was verified using on-land and underwater tests. In addition to the performance verification, the construction process and economic efficiency of the equipment should be checked before applying it to the real construction field for commercial purposes. In this paper, a construction process using the developed equipment was proposed and compared with the existing rubble leveling method. The results demonstrated that the new construction method has higher economic efficiency and safety than the existing construction method.

• The Journal of Korean Association of Computer Education
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• v.20 no.3
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• pp.1-11
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• 2017

In this research, we applied the problem-based learning (PBL) on a college computer system programming course and analyzed how it affected students' academic achievement and job essential skills. After course contents analysis, we divided the course into three subsections and provided three problems for each subsection. For measuring the effect on academic achievement, we compared with scores of the previous year's students. For job essential skills, we used Korea collegiate essential skills assessment (K-CESA) operated by Korea Research Institute for Vocational Education & Training. Students took the test twice before and after the course. Results showed that PBL has positive effects on both academic achievement and job essential skills.

• Journal of the Korean School Mathematics Society
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• v.18 no.3
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• pp.335-352
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• 2015

In this paper, we selected 145 students from engineering college students who took P University's the Scholastic Level Assessment and registered the Basic Mathematics Class among the students who achieved 4th~7th grade in the mathematics B-type of the College Scholastic Ability Test. We compared and analyzed the correlation among the chosen students' grade for the College Scholastic Ability Test, test results of the Scholastic Level Assessment and mid-term test of the Basic Mathematics Subject, type of college entrance and actual condition survey of students in order to derive optimized teaching method for general mathematics subjects which can possibly increase the students' academic ability.

• Proceedings of the Korean System Dynamics Society
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• 2002.08a
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• pp.81-99
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• 2002

정보화사업은 사회 다른 어느 분야보다 눈부신 발전을 보이고 있으며, 중앙부처는 전국공동활용체계 구축, 그리고 행정업무의 능률 제고를 위한 각종 사업들을 역점 추진하고 있다. 그러나 정보화 사업은 중앙부처 위주로 추진되어 개별기관별, 단위사업별로 정보화가 이루어지고 있다. 또한, 기초자치단체의 경우 종합적인 정보시스템추진계획 구도와 전략의 부재로 인해 다양한 정보화 사업들이 부서별로 산발적으로 추진되고 있으며, 이는 사업추진의 분할손은 물론 사업간 연계를 통한 상승작용을 저해하는 주 요인으로 작용할 가능성이 노출되고 있다. 중앙부처의 표준시스템의 개발 및 보급은 그 수용대상인 기초자치단체의 행정정보화를 앞당길 수 있는 긍정적인 영향과 더불어 기초자치단체의 수용능력여부에 따라 기초자치단체의 행정정보화는 그 혼란을 더욱 가중하는 부정적인 영향을 줄 수도 있음을 시사하고 있다. 본 연구는 이러한 표준시스템의 긍정적인 영향만을 인식하고 있는 구조를 파악함은 물론 간과하고 있는 부정적인 영향을 시스템사고를 이용하여 이해함으로써 표준시스템의 보급으로 인한 기초자치단체로의 역기능을 최소화하고, 그에 역동적으로 대처할 수 있는 방안으로 조직 측면에서는 CIO제도의 활성화와 정보담당조직위상의 제고를, 시스템 측면에서는 표준시스템과 기존시스템간의 GAP 분석을 통한 틈새도출 및 보강을, 데이터 측면에서는 공유정보제공시스템 구축을 통한 데이터 자원의 활용을 그 대안으로 제안하고 있다

• The Journal of the Korea Contents Association
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• v.14 no.9
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• pp.371-380
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• 2014

This study was carried out to find out the factors that influence the level of problem drinking of public aid recipients. The sample of this study consisted of 195 public aid recipients living in D and G cities. It was found that drinking is serious among the public aid recipients of which one third are in the state of problem drinking, alcohol abuse, or alcohol dependent. The hierarchical regression analysis revealed that first-drinking under the age of 19, self-esteem, religion, depression, and sex are the factors affecting the problem drinking of public aid recipients. Accordingly, it is necessary to develop a program considering these factors to prevent problem drinking of public aid recipients.

• Archives of design research
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• v.16 no.4
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• pp.197-206
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• 2003

Nowadays, the studies on interface and cognition-engineering has become issues of general interest as newly design-methods which analyze the behavior of user on products. However existing studies were mainly done with verbal-centered method which made it difficult for the designer to apply for visual realization. Moreover many mistakes and noises are taken place whenever the designer converts verbal statements and needs of user into visual factors. Therefore the designer needs to analyze visual perception on user and product as visual-centered methods. This study applies the eye tracking method as analysing-instrument and aims to develop the analysis-framework, the concrete techniques of measurement and the application for the product design. At first the nature and the process of visual perception on products are reviewed for developing analysis method. Then the technique of eye tracking and the meaning of fixation and movement are discussed to specify the concrete method. The basic experiment of product can reveal general analysis process, advantage and guideline for the application of eye tracking method. The Study is peformed through the following 4 steps ; to pre-research into product design and visual perception theory ; to identify the concrete experiment method, to measure the fixation/movement data and analyze the raw data, to convert the result of analysis to the visual framework. Finally the major findings and the limits of the study are suggested and summarized.