• Journal of Korean Society of Transportation
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• v.32 no.3
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• pp.198-206
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• 2014

According to the statistics of the National Police Agency, red light running (RLR) crashes represent a significant safety issue throughout Korea. This study deals with the RLR crashes occurred at signalized intersections in Cheongju. The objectives of this study are to comparatively analyze the characteristics of between RLR crashes and the Non-RLR crashes, and to find out factors using a Binary Logistic Regression(BLR) model. In pursuing the above, the study gives particular attentions to testing the differences between the above two groups with the data of 2,246 RLR/ 3,884 Non-RLR crashes (2007-2011). The main results are as follows. First, many RLR crashes were occurred in the nighttime and in going straight. Second, the difference between RLR and Non-RLR crashes were clearly defined by crash type, maneuver of vehicle before crash, age of driver (30s, 50s), alcohol use and accident pattern. Finally, a statistically significant model (Hosmer and Lemeshow test : 7.052, p-value : 0.531) was developed through the BLR model.

• Journal of the Korean Institute of Gas
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• v.20 no.3
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• pp.22-29
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• 2016

Organization characteristics and safety culture contains a wide variety of factors. It should be accessed in a variety of ways in order to improve such a safety culture. Thru by analyzing the safety culture factor of combined-cycle-power plants, it was found to be a positive role in the improvement and enhancement for the improving of safety training, communication and training participation level by structural equation modeling analysis as the management's interest is increased. As the safety training is emphasized, it would be help to improve work participation.

• Journal of Digital Convergence
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• v.11 no.3
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• pp.101-113
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• 2013

Although the methodological literature is replete with advice regarding the development and validation of multi-item scales based on reflective measures, the issue of index construction using formative measures has received little attention. The aim of this paper is to enhance researchers' understanding of formative measures of high-order factor and assist them in their index construction efforts. This article is also to provide some insights into the nature of formative indicators for researchers to reach an informed choice as to the appropriate high order formative measurement model for their needs. We first provide a brief background on formative indicators, drawing from the limited and fragmented literature on the topic. Next we give an example of constructing an index based on actual survey data and highlight the procedures used to assess its quality. We conclude the article with some thoughts about the use of indexes in empirical studies.

• The Journal of Korean Association of Computer Education
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• v.23 no.3
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• pp.41-47
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• 2020

Computational Thinking(CT) is drawing attention as a core competency required for future talent in the 21st century. Software education for improving CT ability at home and abroad is in full swing. Among them, problem-solving programming education helps to improve CT ability. The CT-TDPS learning model follows the decomposition, abstraction thinking process, which modularizes complex problems, and the Agile development method, which is an iterative and incremental programming method to implement it. In this study, we tried to confirm the improvement of CT ability by applying CT-TDPS learning model to problem solving programming education using Scratch. As a result of the study, it was confirmed that in the problem solving programming education using the CT-TDPS learning model, it improved in all aspects of computing concept, computing performance, and computing perspective, which are sub-factors of CT ability. In addition, it was confirmed that there was a significant difference in the experimental group as a result of the t-test on the Dr.Scratch automatic evaluation result.

• Journal of the Korean Data and Information Science Society
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• v.27 no.3
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• pp.741-747
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• 2016

The aim of study was to estimate genetic parameter of carcass traits in commercial Hanwoo steer using national animal model for selection of superior bull. Analyzed data (n=5,843) on carcass traits was collected from 107,020 Hanwoo steer. The animal model was used to estimate heritability and genetic correlations. The estimated heritability of carcass traits were 0.19, 0.17, 0.20 and 0.23 for carcass weight, eye muscle area, backfat thickness and marbling score, respectively. The estimated heritability for carcass traits in commercial Hanwoo are low than estimated heritability of national progeny test population for selection of superior bull because breeding environment, genetic performance of cow and feeding day was different. Therefore, we suggests that animal model can include practical genetic variable based on national animal model to improve genetic performance in commercial Hanwoo.

• Culinary science and hospitality research
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• v.17 no.1
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• pp.78-92
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• 2011

This study attempts to investigated the impact of mentoring function and job satisfaction and organizational commitment in the hotel kitchen employees. It is hypothesized that the function of mentoring will influence on the job satisfaction and organizational commitment. Data was collected from 362 in the Seoul, Jejn, Busan and Kyungju hotels. The result showed that all of those 3 sub causes of the mentoring functions was positively relation with job satisfaction; but the organizational commitment, only the role model function had a positive relation. This is the mentoring function, which the role to accomplish the role model function is most important to hotel kitchen employees. Furthermore, the hypothesis for the relation of job satisfaction and organizational commitment was turned down. The result of this study will be hopeful for the hotel industries which gave needs to establish to human resources management.

• 한국벤처창업학회:학술대회논문집
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• 2023.04a
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• pp.59-62
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• 2023

100세 인생 시대의 도래는 사회적으로 많은 변화를 요구하고 있다. 기성세대들이 기존의 조직구조 속에서 일할 수 있는 최고 연령이 60대 초반인 것을 감안한다면 100세 인생 시대에는 퇴직한 후에 3~40년간 살아나갈 대안이 있어야 한다는 것이다. 이러한 환경 속에서 일반 직장인들에 비해 직장에서 많은 시간과 노력을 하고 있는 경찰관들이 퇴직 후에 경제활동을 지속하게 하는데 영향을 미치는 요인에 대한 연구를 하는 것이 중요하다고 생각한다. 따라서 본 연구는 정년을 마친 후 연금을 받게 되는 경찰관들이 다른 직종의 직장인들과 비교하여 경제활동에 대한 필요성을 느낄 것인가? 그렇다면 그 이유는 무엇인가? 퇴직 후에도 경제활동을 하려는 경찰관들에게 어떠한 요인들이 영향을 주는 것일까? 등에 대한 것을 기존 연구와 문헌들을 통하여 연구 모형과 가설을 정하고 설문 조사를 통해 실증적으로 분석하고자 한다. 본 연구는 재직 경찰관들이 퇴직 후에 경제활동을 지속하기 위한 의도에 영향을 미치는 요인에 관한 연구를 위해 개인역량, 경제활동 동기, 돈과 경제에 대한 인식, 경제적 만족도와 직장 안정성, 직장 공정성과 상하관계, 교육 및 교육 참여, 은퇴 준비, 직무만족과 직무의 미래비전을 독립 변수로 하고 경제활동 지속의도를 종속 변수로 설정하여 진행하였다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.1
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• pp.311-320
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• 2018

This study was conducted to investigate the relationship among major satisfaction (MS), clinical competence (CC), career decision-making self-efficacy (CDMS), and career decision level (CDL) for undergraduate nursing students. A self-report instrument was used to measure MS, CC, CDMS, and CDL. Questionnaires were completed by 307 nursing students in three nursing colleges, and path analysis was employed to validate the proposed model and analyze the causal relationships among variables. Four constructs (MS, CC, CDMS, and career decision) were analyzed. To build a path model, MS and CC were linked to CDMS and career decision. The initial analysis suggested that the modification needed modification; therefore, a covariance link was added. The overall goodness of fit for indices indicated satisfactory path analysis. The indices were revealed as $x^2=2412$, GFI=0.996, AGFI=0.961, and RMSEA=0.068. As a result, the proposed model was acceptable with a good fit, and there were significant direct and indirect effects of paths in the model. Specifically, MS and CC had a direct influence on CDMS, and MS and CDMS directly affected CDL. Moreover, MS and CC had indirect effects on CDL through CDMS. These results imply that students' CDMS should be seriously considered when designing counseling programs for career guidance, and substantiality of CC education is needed to improve CDMS. These results may provide a practical guideline to provide educational intervention for nursing students.

• Journal of the Korean Data and Information Science Society
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• v.27 no.3
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• pp.677-687
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• 2016

Among lots of sabermetric statistics for baseball batters' ability, the wins above replacement (WAR) is the most popular statistic in MLB. However, there exists a difficulty applying WAR to KBO, since KBO data do not have position adjustment, league adjustment and park factor which are essential in calculating WAR. In this paper, using five statistics for both KBO and MLB qualified batters, we propose hitting ability index (HAI), an alternative sabermetric indices to represent batters' ability. Comparing HAI with WAR of MLB batters, we evaluate the validity of HAI and then applied HAI to 2015 KBO data in which HAI is analyzed statistically with respect to different teams, ages, and positions. Moreover, the linear relationship between KBO batter's HAI and their annual salary is discussed. Grouping 46 KBO batters based on confidence region of the regression model for annual salary, we also statistically investigate batter's annual salary in these groups with respect to several factors.

• Journal of The Korean Association For Science Education
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• v.20 no.4
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• pp.491-504
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• 2000

Recent research has shown that students' interest in learning physics is not a simple one. In this study the dimensions of students' interest in learning physics have been identified. These are the topic being taught, the activity in which the students are involved, and the motive of the students for learning physics. A Likert-style pilot questionnaire was constructed for identifying these dimensions and given to 13 year-old 162 students. A factor analysis of the results indicates that there are meaningful sub-dimensions in interest. In other words, while there were no specific sub-dimensions in topic dimension, motive dimension could be divided into intrinsic motive and extrinsic motive, and activity dimension could also be divided into receptive, experiential, high cognitive, and interactive activity.