• Title/Summary/Keyword: 가설 유형

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Pedestrian Accident Rate Models of Circular Intersection Near Schools (학교와 인접한 원형교차로의 보행자 사고율 모형)

  • SON, Seul Ki;LEE, Min Yeong;PARK, Byung Ho
    • Journal of Korean Society of Transportation
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    • v.35 no.4
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    • pp.321-331
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    • 2017
  • The objective of this study is to analyze the factors affecting the pedestrian accidents of roundabout near schools. To this end, this study has focus on the comparative analysis of pedestrian accidents across different school areas. The traffic accident data from 2007 to 2014 are collected from TAAS data set of Road Traffic Authority. To develop the pedestrian accident rate model, the linear regression model has been utilized in this study. 28 explanatory variables such as geometry and traffic volume factors are used. The main results are summarized as follows. First, the null hypotheses that the number of pedestrian accidents are the same are rejected. Second, 5 multiple linear regression accident models with higher statistical significance (adjusted $R^2$ of 0.651~0.788) have been developed. Third, while the common variables of 3 models (model I~III) related to school location are evaluated to be the pedestrian island, crosswalk, types of roundabout, elementary school and bus stop. Fourth, while the common variable of 3 models (model III~V) related to near school area or not is evaluated to be pedestrian island, type of roundabout, sidewalk, elementary school, speed hump, speed limit sign and number of entry lane. As a result, the installation of pedestrian islands and crosswalk might be expected to decrease the number of pedestrian accidents near schools.

Analysis of Inquiry Tasks in Earth Unit of the 10th Grade Science Textbooks (10학년 과학 교과서 지구 단원의 탐구 과제 분석)

  • Kim, Jeong-Yul;Kim, Myung-Suk;Park, Ye-Ri
    • Journal of the Korean earth science society
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    • v.26 no.6
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    • pp.501-510
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    • 2005
  • An analysis was done on the “inquiry sections” of Earth Science chapters of 10th grade science textbooks. The Inquiry sections were classified into different types and the frequencies of basic process skills, integrated process skills, and inquiry activities were measured in section to find out whether they sufficiently satisfy the requirements based on the 7th National Curriculum. The number of selected science textbooks that have been used in high school for this study were eleven. The number of inquiry tasks were on an average of 24.0. The types of inquiry sections and the elements of basic and integrated process skills were different in every textbooks. The number of inquiry activities were also different and analyzed more than those presented. They were not integrated activities but presented as scientific process skills. The basic process skills and integrated process skills presented in textbooks were $16\%\;and\;77.2\%$, respectively. However, the distribution of two kinds of process skills were analyzed to be $45.6\%\;and\;55.4\%$, respectively. In the process skills, the frequencies of inferring $(49.5\%)$ and data interpretation (68.7%) were the highest; however, the other process skills including recognizing problem, formulating hypothesis and generalization were not even presented in any of the text books. Due to the lack of the definitions of Science process skills and inquiry activities in the 7th National Curriculum, each text book defined these terms differently. It suggests that the meaning of inquiry, science process skills, and inquiry activities should be operationally defined in the national curriculum and the criteria for construction of inquiry activities are required.

The Effects of Visitor's Service Quality Affecting Visitor's Satisfaction in National Parks (국립공원(國立公園)의 탐방(探訪)서비스 질(質)이 탐방만족도(探訪滿足度)에 미치는 영향(影響))

  • Lee, Ju-Hee;Bae, Min-Ki
    • Journal of Korean Society of Forest Science
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    • v.95 no.1
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    • pp.113-123
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    • 2006
  • The purpose of this paper was to identify the effects of visitor's service quality affecting visitor's satisfaction in national parks(NPs). After reviewing the literature, this research selected and developed the indicators of visitor's service (VS) and have formulated the hypothesis of this research. This research had obtained data through a questionnaire, which surveyed 4,423 visitors at 8 NPs in 2005. We have analyzed the data using descriptive statistical methods, factor analysis, Pearson's correlation analysis, and multiple linear regression method. We found that 1) the results of factor analysis, the five factors of visitor's service (FVSs) i.e., assurance, reliability, empathy, tangibles, responsiveness have extracted. 2) in bivariate analysis, the positive relationships between user's satisfaction and FVSs are fairly low but statistically significant. The higher the value of the five factors of VS the higher the degree of user's satisfaction, 3) in multiple regression analysis, FVSs have been statistically significant at one percent level, and 4) the relative contribution of the assurance of VS on user's satisfaction have been determined to have respectively 2.85 times more important than that of the empathy of VS. The research results suggest that the management of natural resources, cultural resources, and park facilities in national park was the most important factor to increase visitor's satisfaction.

Cooperation of Industrial R&D Programs: Focussing on Types of R&D Cooperation (산업기술혁신사업의 성과창출에 미치는 영향에 관한 연구: 산학연협력형태를 중심으로)

  • Bae, Jin Hee;Oh, Myung Jun;Kim, Heon
    • Journal of Korea Technology Innovation Society
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    • v.17 no.3
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    • pp.604-628
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    • 2014
  • We analyse the impact of R&D cooperation on Industrial R&D programs of Government (Ministry of Trade, Industry & Energy, MOTIE), specially performance differentiating between type of R&D partners, type of R&D project leader organizations. And considering five performance measures: paper, patent, technology transfer, commercialization, new employment. Using data on a large sample of post-performance survey of MOTIE in Korea (2013), we examine the impact of R&D cooperation in 2008-2012. The method of analysis is binary logistic regression models operated by SPSS. The results of this study are follows; the performance is statistically significantly different between type of R&D partners, type of R&D project leader organizations on R&D cooperation. Specially, when a private enterprise cooperate with non-profit institutions, performance has a greater success of paper, patent, new employment. On the other hand, when a private enterprise cooperate with a private enterprise cooperate, performance decrease success of paper, technology transfer. Lastly, when non-profit institutions cooperate with a private enterprise, performance has a greater success of patent, technology transfer.

A exploratory study for Influential factors of smartphone over-dependence in elder and older Group (장·노년층의 스마트폰 과의존 영향요인에 대한 탐색적 연구)

  • Bae, Sung-Man;Koh, Young-Sam
    • Journal of Digital Convergence
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    • v.15 no.7
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    • pp.111-121
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    • 2017
  • Smartphone use has become a part of everyday life, not only for adolescents but also for elderly and older people. Thus, this study explored the effect of demographic variables, the amount of smartphone usage, type of smartphone use and psychosocial variables on smartphone dependence of the elder group. We analyzed the data of 5627 (50s and 60s) of the Internet overdependence survey data of the Korea Information Society Agency in 2016. As a result of hierarchical multiple regression analysis, More frequency of smartphone use of weekday and weekend, and usage time of smartphone of weekday were related to greater smartphone dependence. More smartphone use for information seeking and games were associated with greater smartphone dependence. And, as loneliness and anxiety increased, smartphone dependence increased, while smartphone dependence decreased, as social capital increased. Through this study, it is necessary to understand characteristics related to smartphone dependence of elder and older group, and to use this knowledge to solve their smartphone dependence. Future studies also need to identify the causal relationship between predictors of smartphone dependence in elderly and older people.

An Empirical Analysis of Industrial Design′s Functional Role in the Causal Model of Quality Competitiveness : Korean Manufacturing Sector (품질경쟁력 인과모형 하에서 산업디자인의 기능적 역할에 관한 실증적 분석 : 한국 제조업 부문을 중심으로)

  • 임채숙;윤종영
    • Archives of design research
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    • v.17 no.3
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    • pp.111-122
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    • 2004
  • The purpose of this study are two the first is to identify the positioning of product design and analyze its functional relationship with product development, manufacturing, marketing and sales in the comprehensive competitiveness evaluation model ; and the second is to estimate the determinants of QCI(quality competitiveness index), analyze the impact of product design on QCI, and compare the aforementioned results for the seven industrial sectors and the five product patterns. For this empirical analysis, this study surveyed 400 Korean manufacturing firms during August-October 2003. The major empirical findings are summarized as follows : First, the hypothesis on the positive effect of product design on QCI is accepted at a highly significant level (p < 0.001) for all : the manufacturing sector, seven industrial sectors, and five product categories. Second, the correlation analysis and factor analysis lead to the result that the effect of product design on QCI is estimated to be relatively very low, in comparison to those of product functionality and basic performance on QCI. These findings imply that Korean manufacturing sector has been still in the prematured stage at which product design has not played an important role yet. This study concludes that product design in line with other functions (product development, manufacturing, marketing, and sales) should make a good contribution to the improvement of QCI in the future.

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Measuring of Gender Inequality: Asymmetry of Marriage Table with respect to Educational Level (교육수준 별 혼인표의 비대칭성으로 살펴본 남녀불평등지수)

  • 이명진
    • Korea journal of population studies
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    • v.25 no.1
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    • pp.33-50
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    • 2002
  • This study examines cross-national patterns of asymmetry of marriage tables with respect to educational level and tries to measure the degree of gender inequality across nations. A Primary assumption of the study is that gender inequality inhibits symmetric marriage between men and women. As men and women differ more in status, the rate of symmetric marriage between them declines thus producing asymmetric marriage with respect to social status. More specifically, the main object of the study is to develop statistical models and index with which to assess the patterns and degree of asymmetric marriage. Additionally, it is intended to assess the appropriateness of several theoretical perspectives for explaining these variations identified by the statistical models. Two most important such perspectives are industrialism and theory of politics and culture. To answer these questions, this study relies on twenty-seven marriage tables with respect to educational level, some from published tables, and some extracted from other sources. The main findings of the study are: (1) compared to less industrialized countries, more industrialized countries have lower degrees of asymmetric marriage(gender inequality) with respect to educational level, and (2) other things being equal, differences in politics and culture seem to have the some impact on marriage pattern; for instance, social democracy and state socialism reduce the degree of asymmetric marriage while the high emphasis on gender-based hierarchy in Asian countries seems to increase it In short, these results suggest a weaker or modified version of industrialists That is, while with economic growth most nations show a decline in the degrees of asymmetric marriage with respect to social status, for some nations the degrees of asymmetric marriage are affected by their specific politics or cultures.

Impact of Bank's Service Quality on Customer Satisfaction and Loyalty: Focusing on the Difference between PB Customers and Regular Customers (은행의 서비스 품질이 고객만족, 충성도에 미치는 영향: PB고객 군과 일반고객 군의 차이를 중심으로)

  • Cho, Yoon Joe;Dong, Hak Lim
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.14 no.5
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    • pp.159-173
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    • 2019
  • The purpose of this study is to examine the effect of service quality of banks on customer satisfaction and recommendation intention through empirical analysis. In particular, the focus was on the differences of the causal effect between PB(Private Banking) customers and regular customers. For this study, two groups were surveyed and 428 valid questionnaires were analyzed. The hypothesis was tested with a structural equation model using AMOS 23.0. As a result, empathy, reliability and tangibles of bank service quality had a positive(+) effect on customer satisfaction. However, responsiveness and assurance were not statistically significant. On the other hand, customer satisfaction has a positive effect on recommendation intention. This study was conducted to compare the two groups, PB customers and regular customers, and found a significant difference. In the PB customers group, tangibles had a positive effect on customer satisfaction, but no other factors were supported. On the other hand, in the regular customers group, empathy and reliability had a positive effect on customer satisfaction while responsiveness, assurance, and tangibles were not supported. Customer satisfaction were analyzed to have a positive influence on recommendation intention in both groups. These findings are academically significant by applying the SERVQUAL factors to banking services and revealing the differences between the PB customers and regular customers. In practice, it is meaningful in that it provided banks with the insights needed for future segmentation and management of customer groups.

The Effect of the Performance Compensation System on Organizational Effectiveness and Motivation and Corporate Performance : Focused on the Employees of Automobile Maintenance Service Companies (성과보상제도가 조직유효성 및 동기부여와 기업성과에 미치는 영향 : 자동차정비 서비스업체 종업원을 중심으로)

  • Hwang, Jung-Yup;Park, Chan-Kwon;Park, Sung-Min;Kim, Chae-Bogk
    • Journal of Convergence for Information Technology
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    • v.11 no.11
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    • pp.95-114
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    • 2021
  • This study is to study the effect of corporate performance compensation system on organizational effectiveness and motivation, and the effect of organizational effectiveness and motivation on corporate performance, targeting employees of automobile maintenance service companies. 430 questionnaires obtained through the survey were used for the study. As a result of testing the research hypothesis, tangible reward had a significant positive (+) effect on job satisfaction, but intangible reward had a positive (+) effect on job satisfaction, but it was not significant. Also, tangible and intangible rewards have a significant positive (+) effect on organizational commitment and motivation. Job satisfaction has a significant positive (+) effect on productivity and service quality. However, organizational commitment had a significant positive (+) effect on productivity, but had a positive (+) effect on service quality, but was not significant. Lastly, motivation has a significant positive (+) effect on productivity and service quality. Through the research results, the relationship structure between the performance compensation system, organizational effectiveness and motivation, and corporate performance was identified, and the application of the performance compensation system to employees in the automobile industry was presented.

A Study on the Influence of the Use of Specialized Organizations for Technology Transfer and Commercialization on Corporate Performance -Focusing on the complex use of specialized institutions- (외부기술이전 기업의 기술이전·사업화 전문기관의 활용이 기업의 기술성과 및 경영성과에 미치는 영향에 관한 연구 -기술이전·사업화 전문기관의 복합활용을 중심으로-)

  • Lee, Jungsoo;Park, Myeongjun;Jee, Sungchul;Park, Minjeong;Sohn, Dongseop
    • Journal of Digital Convergence
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    • v.19 no.7
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    • pp.189-197
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    • 2021
  • In order to commercialize technology, Korea is continuously fostering specialized institutions for technology transfer/commercialization, and it is composed in various forms. However, there are limited studies on corporate performance according to the type of technology transfer/commercialization specialized institution and the type of support. This study aims to measure the combined utilization performance and performance of companies that have adopted the technology by classifying the types of technology transfer/commercialization specialized institutions. To this end, a study was conducted on 380 companies that promoted the introduction and use of external technologies. As a result of the analysis, it was found that the more the combined use of technology transfer/commercialization specialized institutions has a positive effect on corporate performance, and has different effects on corporate performance depending on the items of external technology introduction. In addition, it was found that the earlier the industrial growth stage is, the higher the corporate performance. Through this study, implications of strategies for the use of specialized organizations for technology transfer and commercialization and introduction of external technologies of the company were presented at the corporate level.