• Title/Summary/Keyword: Exploratory data analysis

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Research of the Inflight Meal Service Quality (항공사 기내식 서비스품질 연구)

  • Ko, Seon-Hee
    • Journal of the Korea Convergence Society
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    • v.9 no.4
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    • pp.373-380
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    • 2018
  • The purpose of this study was to identify the importance and performance ranking and differences in inflight meal service quality. Data were collected from A airlines passengers. In order to secure the validity and reliability of the measurement tools, exploratory factor analysis were conducted, accordingly meal, service, cleanliness were deduced. IPA results are as follows. First, the quadrant I consisted of meal flavor, meal quality, meal menu, balanced diet, korean food availability, cleanliness of dishes, cleanliness of crew clothes. In the II quadrant, appropriate temperature, appropriateness of meal distribute time, cleanliness of the meal were found. So, the airline managers should have the most interest in these attributes and had to improve first. The quadrant III showed meal quantity, liquor diversity, polite attitude, immediate response to the meal, knowledge of the meal, meal freshness. Lastly, the quadrant IV showed a variety of beverage and special meal order. It is considered that resource allocation is necessary for minimizing the amount of resources invested to the quadrant IV, and then it should be allocated the quadrant II, which is high in importance but low in performance.

A Study of Effect that Tourist Hotel Employee's Service Quality on Customer Satisfaction, Trust and Commitment (관광호텔종사원의 서비스 품질이 고객만족, 신뢰.몰입에 미치는 영향)

  • 이지영;하종명
    • Journal of Applied Tourism Food and Beverage Management and Research
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    • v.16 no.2
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    • pp.33-56
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    • 2005
  • The purpose of this study is to understand the critical role of customers' perceived service quality. in relationship marketing. This paper examined the relationships of service quality with customer satisfaction, and investigated the effects of trust and commitment. Data were collected from 242 people at hotel located in Taegu city. LISREL provided satisfactory model-fits in measurement model and structural equation model. The empirical results indicated that first, service quality takes strong effect on customer satisfaction and trust but not on commitment. Second, trust and commitment are importantly influenced by customer satisfaction. Third, service quality was found to indirectly contribute to trust and commitment. Finally, customer satisfaction is effective mediators linking service quality to trust and commitment. The effects of these variables on trust and commitment, which are based on social exchange theory, were empirically confirmed.

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Policy Options for Diaper Recycling to Foster Effective Citizens' Participation - Based on Collection Pilot Test of Soiled Diaper in Nowon-gu - (효과적인 시민참여를 위한 기저귀 재활용 정책방안 - 노원구의 사용 후 기저귀 수거 시범사업 결과를 중심으로 -)

  • Kim, Kyung Shin
    • Resources Recycling
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    • v.24 no.3
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    • pp.16-26
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    • 2015
  • This study aims to suggest possible policy options for collection of post-consumer diapers as a sustainable prerequisite to implementation of public recycling system with the desktop monitoring results and analysis of collection cost involved. By conducting a diaper collection pilot test on daycare centers and households in the Seoul Nowon-gu, this study revealed that the odor issues did not stand out as an important hindering factor and that the collection rate was the largest contributing factor regarding collection costs. The exploratory cost analysis result shows that the implemented recycling system must guarantee collection rate over 50% via twice-a-week collection frequency, to be comparable or even superior to the current food waste collection cost. Also the pilot demonstration test showed that the final collection rate can be achieved as much as over 50%. The promising data thus obtained cost economically viable future diaper recycling system implementation in the entire Seoul metropolis and adjacent areas of dense population. With the concomitant development of recycling technology and related infrastructure for systematic collection of diaper waste, it makes our society much more sustainable.

The Study of Factors Related to Clinical Competency in Dental Hygienist (울산지역 치과위생사의 실무능력 관련요인 분석)

  • Lee, Ga-Ryoung
    • Journal of dental hygiene science
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    • v.5 no.4
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    • pp.155-163
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    • 2005
  • The purpose of this exploratory study was to assess work performance of dental hygienists and identify factors influencing their work performance. A questionnaire was administered to 87 dental hygienists working dental clinics based in Ulsan during the period from June 2005 through July 2005. A total of 77 questionnaires were collected and used for analysis. SPSS 11.5 program was employed for statistical analysis. All data were expressed in terms of numbers, percentage and mean score. The results of the study are summarized as follows: 1. There was a significantly positive correlation between age and the level of work performance in the Scientific competency group and Esthetical competency group. 2. Unmarried dental hygienists demonstrated better work performance than married dental hygienists in Scientific, Esthetical and Personal competency groups, showing a statistically significant difference. 3. By education level, those with junior college degree had better work performance than those who are attending or graduated from college in the four groups. By workplace, those who were working at non-general hospitals demonstrated a higher level of performance in the three groups except the Ethical group, but the difference was not statistically significant. 4. A significantly positive relationship was observed between monthly pay and work performance in the Scientific, Personal and Esthetical competency groups. 5. A positive relationship was observed between work experience and performance in the Scientific competency group. But there was no difference between work experience and performance in the other three groups. 6. By working environment, those who were working with assistant nurses showed a higher level of performance than those working without assistant nurses in the Scientific competency group, and the difference was statistically significant.

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The Impact of Self-Reported Knowledge and Self-perceived Importance about Earth Systems on Science Gifted Students' Science Motivation: An Exploratory Study (과학 영재 학생의 지구계에 대한 지식과 중요성이 과학 동기에 미치는 영향: 탐색적 연구)

  • Oh, Jun-Young;Lee, Hyundong;Lee, Hyonyong
    • Journal of the Korean earth science society
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    • v.36 no.6
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    • pp.580-590
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    • 2015
  • The purpose of this study was to investigate the correlation among science gifted students' self-reported knowledge and self-perceived importance about Earth systems, and their science motivation. Ninety three seventh graders participated in this study who enrolled at Science Gifted Institute of K university. The correlation was measured by a validated Earth systems survey and Science Motivation Questionnaire (SMQ). The data were analyzed at the margin of error probability 0.05 using correlation and regression analysis. The result of reliability for items turned out high because the Cronbach's alphas were .896~.937. Results indicated that the correlation between self-reported knowledge on Earth systems and science motivation showed a correlation coefficient .656, whereas the correlation between importance on Earth systems and science motivation was .387, which was regarded as low. On the other hands, the result of regression analysis depicted that non-std. coefficients between students' self-reported knowledge about Earth systems and science motivation were .548 (.077), which lead to the conclusion that students' knowledge on Earth systems explained 43% of science motive-variation. It implied that Earth systems education program could impact the increased motivation of science gifted-students. Therefore, this study suggests that the various Earth systems education programs could be developed and implemented in order to increase students' motivation on studying science in general and Earth science in specific.

When Changes Don\`t Make Changes: Insights from Korean and the U.S Elementary Mathematics Classrooms (변화가 변화를 일으키지 못할 때: 한국과 미국 초등수학 수업 관찰로부터의 소고)

  • 방정숙
    • Education of Primary School Mathematics
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    • v.4 no.2
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    • pp.111-125
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    • 2000
  • This paper presents cross-national perspectives on challenges in implementing current mathematics education reform ideals. This paper includes detailed qualitative descriptions of mathematics instruction from unevenly successful second-grade classrooms both in Koran and in the U. S with regared to reform recommendations. Despits dramatic differences in mathematics achivement between Korean and the U.S student. problems in both countries with regard to mathematics education are perceived to be very similar. The shared problems have a common origin in teacher-centered instruction. Educational leaders in both countries have persistently attempted to change the teacher-centered pedagogy to a student-centered approach. Many teachers report familiarity with and adherence to reform ideas, but their actual classroom teaching practices do not reflect the full implications of the reform ideals. Given the challenges in implementing reform, this study explored the breakdown that may occur between teachers adoption of reform objectives and their successful incorporation of reform ideals by comparing and contrasting two reform-oriented classrooms in both countries. This comparison and contrast provided a unique opportunity to reflect on possible subtle but crucial issues with regard to reform implementation. Thus, this study departed from past international comparisons in which the common objective has been to compare general social norma of typical mathematics classes across countries. This study was and exploratory, qualitative, comparative case study using grounded theory methodology based on constant comparative analysis for which the primary data sources were classroom video recordings and transcripts. The Korean portion of this study was conducted by the team of four researchers, including the author. The U.S portion of this study and a brief joint analysis were conducted by the author. This study compared and contrasted the classroom general social norms and sociomathematical norms of two Korean and two U.S second-grade teachers who aspired to implement reform. The two classrooms in each country were chosen because of their unequal success in activating the reform recommendation. Four mathematics lessons were videotaped from Korean classes, whereas fourteen lessons were videotaped from the U.S. classes. Intensive interviews were conducted with each teacher. The two classes within each country established similar participation patterns but very different sociomathematical norms. In both classes open-ended questioning, collaborative group work, and students own problem solving constituted the primary modes of classroom participation. However in one class mathematical significance was constituted as using standard algorithm with accuracy, whereas the other established a focus on providing reasonable and convincing arguments. Given these different mathematical foci, the students in the latter class had more opportunities to develop conceptual understanding than their counterparts. The similarities and differences to between the two teaching practices within each country clearly show that students learning opportunities do not arise social norms of a classroom community. Instead, they are closely related to its sociomathematical norms. Thus this study suggests that reform efforts highlight the importance of sociomathematical norms that established in the classroom microculture. This study also provides a more caution for the Korean reform movement than for its U.S. counterpart.

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Validation of the Motivational Self-Concept Rating Scale for Child Care Teachers (보육교사를 대상으로 한 동기부여적 자아개념척도 타당화 연구)

  • Heo, Lin-Kang;Lee, Wan-Jeong
    • Korean Journal of Childcare and Education
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    • v.7 no.3
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    • pp.239-257
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    • 2011
  • The purpose of this study was to redefine and validate the motivational self-concept for child-care teachers. Based on related researches, items were remodified to be good enough to use for studying child-care teachers' motivational self-concept. Redefined items were analysed by factor analysis and validated by use of child-care teachers' professional recognition and their ego-resiliency. Researchers have garnered data from 321 child care teachers as convenience samples who are engaged in child care centers in Seoul and Kyunggi province by using questionnaire research methods. We have eliminated questions that are .40 below communality, questions by conducting exploratory factor analysis. As a result, 6 factors and 23 items were selected; 6 factors have indicated that it explained 77.12% of total variate motivational self-concept rating scale and ${\alpha}$ of Cronbach that of total items indicated acceptable level. After examining relevancy of child-care teachers' professional recognition and ego-resiliency to verify compliant feasibility of the motivational self-concept rating scale, the relation between motivational self-concept and professional recognition was .604(p<0.001) indicating significant static correlation and the relation between motivational self-concept and ego-resiliency was 4.456(p<0.01) indicating significant static correlation. Through this result, it is verified that motivational self-concept rating scale has compliant feasibility in professional recognition and ego-resiliency.

The Effects of Advanced Design Innovation Strategy on Business Performance (선행 디자인 혁신 전략이 기업 성과에 미치는 영향)

  • Kim, Yong-Wook;Song, In-Am;Hwang, Hee-Joong
    • Journal of Distribution Science
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    • v.11 no.10
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    • pp.27-36
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    • 2013
  • Purpose - This paper empirically studies the effects of advanced design innovation strategy on business performance, to investigate manufacturing industries that can develop design-driven-innovation strategies. Many researchers now recognize the importance of design in a CEO's decision-making process. To analyze these effects, this study deduces the definition of advanced design strategy by reviewing existing studies. The advanced design is a strategy that is applied to improve business performance instead of the appearance of a product for increasing its sales. In terms of business processes, the advanced design strategy is defined as the incorporation of business activities prior to the development of the product, to offer new experiences and values to users, from those designs. Research design/data/methodology - This paper establishes a model for empirical analysis. In this study, we derived factors of the characteristics of advanced design based on previous studies. We tried to investigate whether advanced design innovation strategy and entrepreneur's characteristics could have any impact on business performance. At the same time, we tried to find out the moderating effect of entrepreneurs' characteristics. The advanced design is made up of three elements: precedence, integration, and immersion of design activities. These three elements are independent variables for the model. The dependent variables are: increased rate of sales, R & D performance, and public image of the company. Specifically, this study establishes a CEO's characteristics as a moderating variable between the independent and dependent variables. Results - We proved that the level of entrepreneurs' characteristics has a moderating effect on the business performance. The findings of this study offer the following theoretical implications. The precedence of design activities positively affects the increased rate of sales by offering new experiences to users and creating new values. The integration of design activities also has a positive effect on the R&D performance. In addition, the immersion of design activities positively influences all the elements comprising business performance. The analysis of moderating variables elucidates that CEO's characteristics have a moderating role between precedence, integration, and immersion of design activities, and business performance. Conclusions - The practical implications of the study are as follows. This study contributes to the progression of advance design theories by conducting an empirical study on the advanced design concept. More importantly, the empirical study on the CEO group seeking exploratory innovation supports Verganti's "design-driven innovation" concept, according to which design can make innovation successful by offering useful values to users, as evident in the case of many innovative companies, such as Nintendo and Apple. Future studies need to investigate the reliability of practical examples, including the various activities of business. We suppose that there may be real differences between the results of this study and the applicative situation in the presence of a CEO group.

Development and Validation of a Scale for Diagnosing the Core Competency of University Students: M University Case Study (대학생 핵심역량 진단도구의 개발과 타당화 연구 : M대학교를 중심으로)

  • Lee, Mira;Kim, Nooree
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.24 no.5
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    • pp.576-582
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    • 2018
  • At present, universities in Korea are trying to raise the competency of university students by preparing them with abilities and attitudes required in society, and many universities are carrying out "core competency based education." Therefore, there is a need to evaluate the core competencies of students and verify educational performance. M University, which trains students in specialized marine topics, also conducts core competency based education, reflecting the specificity of the university. The purpose of this study was to develop and validate a tool to measure the core competencies of M University students. First, preliminary questions were developed based on a literature review. Second, item analysis and exploratory factor analysis were conducted. As a result, six factors were identified. Finally, a total of 50 items were extracted from the final test, and validity was confirmed. The scale developed on the basis of this study can not only diagnose the core competency of students overall but also connect programs by diagnosing individual core competencies. It will be possible to use these results as basic data for honing the differentiated talents of universities specialized in maritime and ocean-related topics.

Analysis on the development necessity of a safety health knowledge test for young children (유아 안전보건지식 측정도구 개발 필요성에 대한 분석)

  • Kwak, Eunbog;Choi, Gyu yil
    • Journal of Digital Convergence
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    • v.18 no.8
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    • pp.511-518
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    • 2020
  • The purpose of this study is to emphasize the importance of the safety and health ability to safely protect body in a risky situation in infancy, but due to the lack of a valid test tool for measuring infant safety knowledge, measure the safety and health knowledge of infants. In order to achieve the purpose of the study, opinions of education experts and early childhood education experts were collected, and suitable factors for measuring safety and health knowledge of children aged 3-5 years were extracted. The measurement questions developed based on this were surveyed on 186 children aged 3-5 years old to verify the relevance of the question composition and the reliability of the contents. In the distribution of the item response, values of 0.8 or less were deleted, and items with a correlation of r<.40 or less were also deleted, and the reliability test showed more than .70. After exploratory factor analysis, it was developed into 23 questions in 3 areas. The total score of safety and health knowledge for the final question and the degree of correlation were above .80. The tool for measuring child safety and health knowledge developed in this study was confirmed to be appropriate for item discrimination, item reliability, and content validity, and thus will be used as basic data for measuring child safety and health knowledge. After the early childhood safety and health education program is implemented, Further research should verify the effectiveness of the early childhood safety and health program.