• Title/Summary/Keyword: exploratory data analysis

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Nurses and Nursing Students' Recognition of Good Instruction (간호사와 간호대학생의 좋은 수업에 대한 인식)

  • Park, Mina;Shin, Sujin
    • Journal of Korean Academy of Nursing
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    • v.50 no.1
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    • pp.101-115
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    • 2020
  • Purpose: The purpose of this study was to identify and assess from nursing students and nurses in the clinical field what constitute good instruction, through the review of nursing students' opinions and clinical field demands. Methods: The study design was used Creswell's exploratory sequential design by collecting and analyzing qualitative data obtained from interviews and then analysis of quantitative data. The participations were 79 seniors in nursing schools and 85 nurses with less than three years of clinical experience. The data were collected through individual interviews and analyzed based on Elo and Kyngas's content analysis method. The quantitative data were collected using the questionnaire developed based on qualitative results and analyzed by SPSS 23.0 program and Importance Performance Analysis (IPA). Results: The results showed that IPA extracted seven items with high importance but low satisfaction: "nursing fads and trends," "teacher-learner communication and reflection," "materials used in clinical settings such as monitoring results and test results," "special presentations by experienced practitioners," "instruction assures learners' comprehension," "accurate and detailed evaluation standards" and "feedback on homework and exam." Conclusion: The factors comprising good instruction were verified, and the necessity for additional efforts to improve high importance and low performance factors was noted. Therefore, this study can serve as a guide for nursing education facilities and educators in developing of a thorough education system with excellent instruction designed to achieve an ideal nursing education.

Analysis of Occupational Accident Types in the Apartment Construction Sites using Multiple Correspondence Analysis (다중 상응 분석을 통한 아파트 건설현장 업무상 재해 유형 분석)

  • Ryu, Han-Guk;Son, Seunghyun
    • Journal of the Korea Institute of Building Construction
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    • v.20 no.3
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    • pp.269-278
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    • 2020
  • In this study, we analyzed the safety accidents that occurred in the apartment construction site and the correlations between the victims according to the type of work accidents through multiple correspondence analysis. There is a lack of disaster-related studies on apartment construction sites, the third most frequent building type in Korea, and most of them have used survey techniques. Therefore, the exploratory data analysis was conducted in industrial accident cause data, and derived the correlation analysis between each disaster victim through multiple correspondence analysis. The results of the study are summarized in two as follows. First, as the number of heights increased due to the high rise and complexity of apartments, the fall rate and mortality rate were high. In addition, deaths are mostly caused by very few experienced workers or those with more than 10 years of experience, resulting from safety training, lack of experience, and insensitivity to safety. Second, multi-correspondence analysis showed that most safety accidents can be prevented by wearing safety equipment, and following proper work process and its safety action. The key factors derived from this study can be used for safety education, supervision, and management in apartment construction sites.

Study of Factor Validity of Korean Version Self-Compassion (한국판 자기자비 척도의 요인 타당성 연구)

  • Ku, Do-Yeon;Jung, Min-Chul
    • The Journal of the Korea Contents Association
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    • v.16 no.9
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    • pp.160-169
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    • 2016
  • Self-Compassion(SCS) Scale is developed by Neff(2003a) and translated by Kim, Lee, Cho, Chae, Lee(2008). But, there is the limitation with validation SCS and Korean version Self-Compassion(K-SCS) performed in college students and the incoherence for the results of the scale's factor analysis in other countries. Therefore, this study examined the validity of factor structure in SCS based on data in 435 adult aged from 18 to 79. For this, we conducted exploratory factor analysis(EFA) and confirmatory factor analysis(CFA), and we examined the each adequacy of two-factor, tree-factor and six-factor model. The result of EFA supported six-factor and the result of CFA was the six factor model best as well.

A Study on Information Consumption Behavior Structure of Rural Residents in Changchun, China (중국 장춘시 농촌주민의 정보소비 행동구조에 관한 연구)

  • Liu, Hui-Shu;Jung, Gi-Young;Kim, Hyung-Ho
    • Journal of the Korea Convergence Society
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    • v.11 no.1
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    • pp.9-16
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    • 2020
  • This study aims to deeply analyze the information consumption behavior structure of rural residents in Changchun, China. and further improve the information consumption level of rural residents. Questionnaire survey and statistical analysis were used in this study. First, Through in-depth interview and open questionnaire collection and compilation of measurement questions. Secondly, residents in 15 rural areas around Changchun were selected for the survey, Finally, SPSS23.0 was used for exploratory factor analysis of recovered data, and Mplus7.4 was used for confirmatory factor analysis. The results show that the structure of information consumption behavior of rural residents in Changchun includes three dimensions of information demand, information literacy and payment ability, which is corresponding to the previous studies on information consumption behavior structure's demand power, purchasing power and information quality. This study has certain empirical validity.

The effects of employees' person-environment fit on employees' stress in the family restaurant (패밀리레스토랑 종사원의 스트레스에 영향을 미치는 개인환경적합성 요인에 관한 연구)

  • Jung, Hyo Sun;Yoon, Hye Hyun
    • Korean journal of food and cookery science
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    • v.29 no.6
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    • pp.709-715
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    • 2013
  • The purposes of this study were to consider the influence of person-environment fit in the family restaurants on employees' stress. Based on total 274 samples obtained from empirical research from March 20 to April 10, 2013, self-administrated questionnaires were completed by patrons in metropolitan area and data were analysed by frequency, exploratory factor analysis, reliability analysis, correlation analysis, t-test, one-way ANOVA, and multi-regression analysis. Results of study were as follows: From the exploratory factor analysis of the variables, 4 factors, i.e. person-organization fit(3 variables), person-job fit(3 variables), person-supervisor fit(3 variables), and employees' stress(5 variables) were extracted. The results showed that employees' person-organization fit was significant differences according to gender(male $4.43{\pm}1.45$; female $4.83{\pm}1.34$; p<0.05). In terms of employees' person-supervisor fit was significant differences according to age(20' $3.08{\pm}0.99$, 30' $3.52{\pm}0.10$; 40' $3.71{\pm}1.07$; p<0.05). Also, the person-job fit(${\beta}$=-0.472; p<0.001), and person-supervisor fit(${\beta}$=-0.285; p<0.001) among the person-environment fit had a significant negative effect on employees' stress. Limitations and future research directions are also discussed.

A Validity Study for the Development of a Digital Competency Assessment Tool for Preschool Teachers (유아교사의 디지털 역량 측정 도구 개발을 위한 타당성 연구)

  • Young-Mi Lee;Seon-Young Park
    • Journal of Internet of Things and Convergence
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    • v.10 no.2
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    • pp.93-102
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    • 2024
  • The purpose of this study is examine the validity of digital competency indicators in order to develop a tool that can measure the digital competency of preschool teachers. To review the validity, exploratory factor analysis and confirmatory factor analysis were conducted on the data of 272 preschool teachers. The exploratory factor analysis resulted in four factors, and the confirmatory factor analysis verified the fit, validity(convergent validity, discriminant validity) and reliability of each competency group and the model composition of sub-competency indicators. The four factors validated were named 'Understanding Digital Technologies', 'Digital Technology Understanding', 'Digital Technology Application', 'Digital Technology-based Communication', 'Digital Ethics Understanding and Practice'. The analysis results demonstrated the reliability and validity of the tool for measuring the digital competencies of preschool teachers, and it is meaningful in that it can provide a foundation for measuring the digital competency of preschool teachers and conducting education program suitable for each digital competency level.

The Effects of Perceived Risks on Food Purchase Intention: The Case Study of Online Shopping Channels during Covid-19 Pandemic in Vietnam

  • NGUYEN, Cuong;TRAN, Doan;NGUYEN, Anh;NGUYEN, Nhan
    • Journal of Distribution Science
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    • v.19 no.9
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    • pp.19-27
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    • 2021
  • Purpose: Purchasing food via online shopping channels is booming during Covid-19 Pandemic in Vietnam. However, the perceived risks of food bought via online shopping channels may discourage consumers. Hence, this study assesses the effects of perceived risks on food purchase intention via online shopping channels in Vietnam. Research design, data and methodology: This study applied the multiple regression analysis with 253 samples collected from consumers who frequently purchase food via online shopping channels in Vietnam. The questionnaire is provided to respondents via Google Form. The sample collection method is convenience sampling. Three hundred samples were collected, but 253 samples are used after filtering the responses with missing data. The Exploratory Factor Analysis (EFA) and regression analysis are used for data analysis on SPSS software version 20. Results: The results show that product risk, security risk, time risk, and fraud risk of the seller negatively affect the intention to buy food via online shopping channels in Vietnam. Conclusions: The study provides several implications and recommendations for food companies and online food sellers. Reducing customers' perceived risks online food makes customers more willing to buy food online during Covid-19 Pandemic. Limitations and suggestions for further research are also discussed.

Development and Validation of the Diabetes Management Self-efficacy Scale for Older Adults (DMSES-O) (노인의 당뇨병 관리 자기효능감 측정도구 개발 및 평가)

  • Song, Misoon;Choi, Suyoung;Kim, Se-An;Seo, Kyoungsan;Lee, Soo Jin;Kim, Eun Ho
    • Journal of muscle and joint health
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    • v.21 no.3
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    • pp.184-194
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    • 2014
  • Purpose: The purpose of this study was to develop and validate a diabetes management self-efficacy scale for older adults (DMSES-O). Methods: A preliminary DMSES-O of 22 items was derived from a literature review and seven domains of self-management behaviors. Content validity was confirmed by experts in diabetes self-management education. To test the reliability and validity of the DMSES-O, data were collected from 150 older adults with type 2 diabetes. The data were analyzed using exploratory factor analysis, and Cronbach's ${\alpha}$ and Pearson's correlation coefficients were calculated. Results: From the exploratory factor analysis, 17 significant items in six subscales were derived. Factors derived were named "problem solving for hypoglycemia and self-monitoring blood glucose," "problem solving for hyperglycemia," "coping with psychological distress and taking medication," "reducing risks of diabetes complications," "appropriate exercise," and "healthy eating." The criterion-related validity of the DMSES-O was established by its correlation with the Summary of Diabetes Self-care Activities Questionnaire. Cronbach's ${\alpha}$, a measure of internal consistency, was .84 for the overall scale and ranged from .54 to .80 for the subscales. Conclusion: The DMSES-O is a reliable and valid instrument to measure selfefficacy for diabetes self-management among older adults.

Comparison of Online Shopping Mall BEST 100 using Exploratory Data Analysis (탐색적 자료 분석(EDA) 기법을 활용한 국내 11개 대표 온라인 쇼핑몰 BEST 100 비교)

  • Kang, Jicheon;Kang, Juyoung
    • The Journal of Bigdata
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    • v.3 no.1
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    • pp.1-12
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    • 2018
  • Since the beginning of the first online shopping mall, BEST 100 is being provided as the core of all shopping mall websites. BEST 100 is greatly important because consumers can identify popular products at a glance. However, there are only studies using sales outcome indicators, and prior studies using BEST 100 are insignificant. Therefore, this study selected 11 online shopping malls and compared their main characteristics. As a research method, exploratory data analysis technique (EDA) was used by crawling the BEST 100 components of each shopping mall website, such as product name, price, and free shipping check. As a result, the total average price of 11 shopping malls was 72,891.41 won. Sales texts were classified into 8 categories by text mining. The most common category was the fashion part, but it is significant that the setting of the category analyzed the marketing text, not the product attribute. This study has implications for understanding the current online market flow and suggesting future directions by using EDA.

The Mediating Effect of Brand Trust on the Relationship between Brand Value and Brand Loyalty in the Dessert Cafes (디저트 카페의 브랜드 가치와 브랜드 충성도 관계에 브랜드 신뢰의 매개효과)

  • Kwon, Ki-Wan;Choi, Ik-Jun;Kim, Kyoung-Eun
    • Culinary science and hospitality research
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    • v.23 no.5
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    • pp.48-57
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    • 2017
  • This study aims to analyze the relationships among brand value, brand trust, and brand loyalty of dessert cafes and to verify the mediating effect of brand trust in the relationship between brand value and loyalty. This study targeted eight dessert cafes located in Seoul, and a survey with customers aged 20 or over was conducted over 11 days from April 10th to 21th, 2017. A total of 230 self-administered questionnaires were distributed, and 205 questionnaires (89.13%) were included for the data analysis after the exclusion of 25 incomplete and unreliable responses. Every data used for analysis went through frequency analysis, reliability test, exploratory factor analysis, simple regression analysis, multiple regression analysis, mediator effect analysis, and Sobel test using the SPSS 18.0 analysis program. The study results revealed that brand value had a significant positive relationship to brand trust, and brand trust had a significant positive relationship to brand loyalty. Also, brand value had a significant positive relationship to brand loyalty, and brand trust mediated the relationship between brand value and loyalty. Based on these findings, the discussion to enhance brand loyalty of dessert cafes were suggested.