• Title/Summary/Keyword: multiple factor analysis

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고등학생의 신체적 건강 영향요인 규명을 위한 청소년 건강행태 온라인조사 자료 분석 (An Analysis of 2012 Korean Youth Health Risk Behavior On-line Survey Data for Exploring Physical Health Determinants of High School Students)

  • 이홍직
    • 한국전자통신학회논문지
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    • 제10권1호
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    • pp.117-124
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    • 2015
  • 본 연구는 정보화 시대를 사는 고등학생의 신체적 건강에 영향을 미치는 요인을 인구사회경제학적 특성요인, 학교 요인, 문제행동 요인을 통해 탐색하였다. 이를 위해 본 연구에서는 2012년 제8차 청소년 건강행태 온라인조사 자료 중 고등학생 자료를 활용하여 각 관련변수에 대한 빈도분석, 백분율, 평균 등의 기술 통계분석을 시행하였으며, 독립변인에 따른 고등학생의 신체적 건강 수준의 차이를 t-검증과 F-검증을 통해 분석하였으며, 각 독립변인이 고등학생의 신체적 건강에 미치는 영향을 다중회귀분석을 통해 검증하였다. 결과를 통합 회귀분석에 근거해 제시하면, 인구사회경제학적 요인 중에서는 남학생일수록, 아버지의 학력이 저조한 경우에, 형제가 있는 경우에, 가계의 경제수준이 높을수록, 학교 요인에서는 저학년일 경우에, 성적이 우수할수록, 문제행동 요인에서는 문제음주를 하지 않는 경우에, 약물을 사용하지 않는 경우에 통계학적으로 유의한 수준에서 신체적 건강수준이 더 양호한 것으로 나타났다. 이러한 결과를 근거하여 본 연구는 고등학생의 신체적 건강 증진을 위한 제언을 전달하였다.

일부 지역 주민들의 스트레스 관련요인에 대한 연구 (Community Based Study for Stress and It's Related Factors)

  • 이정미;길상선;권근상;오경재
    • Journal of Preventive Medicine and Public Health
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    • 제36권2호
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    • pp.125-130
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    • 2003
  • Objectives : This study evaluated the stress of community residents using the General Health Questionnaire, GHQ-60, as an instrument of stress measurement. Methods : The study included 2100 residents, aged 20 and over, living in three areas, a large city, a medium sized city and a rural area, between June and September 2001. A questionnaire interviewing method was used to collect data. The data were analyzed using a t-test, ANOVA, Pearson's correlation coefficients and multiple regression analysis. Results : In this study, the degree of stress, as measured by the GHQ-60, was shown to be significantly higher in the following categories: females, people over 60 years old, people engaged in the primary industries and labor work, low incomes, the divorced and the bereaved, people who received no more than an elementary education, people who suffer from chronic diseases and non-exercisers. A factor analysis suggested that there were three factors of social dysfunction factors; psychosomatic symptom, and depression and anxiety, The social dysfunction factors was statistically significant for the groups described above. The factor of psychosomatic symptoms was statistically significant in the rural residents, and in the groups describedabove. The depression and anxiety factor was statistically significant in the large city residents, people aged between 20-29 years, students, unmarried persons, university graduates and those having suffered from chronic diseases. From the multiple linear regression analyses, chronic disease, exercise, gender and income, proved to be significant stress related factors Conclusions : This study suggests that special attention should be given to the management of the chronic invalided, non-exercisers, females and snail income earners, in order to maintain and promote the psychological health of residents in a community.

방화 발생에 영향을 미치는 요인에 관한 연구 (A Study on the Factors Affecting the Arson)

  • 김영철;박우성;이수경
    • 한국화재소방학회논문지
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    • 제28권2호
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    • pp.69-75
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    • 2014
  • 본 연구에서는 방화발생에 영향을 미치는 요인을 도출하기 위하여 발생건수를 종속변수로 하고 경제 인구 사회적 요인을 독립변수로 하는 다중회귀분석을 실시하였다. 다중회귀분석은 선형함수, 준로그함수, 역준로그함수, 이중로그함수 4가지 함수형태에 대해 적용하였으며, 각 단계별로 변수의 선택과 제외를 고려하는 단계적선택 방식을 적용하였다. 다중공선성 문제와 자기상관 문제를 해결하기 위하여 분산확대지수(VIF)와 Durbin-Watson 계수 이용하였으며, 4가지 함수모형에 대하여 수정된 R 제곱(설명력) 값이 0.935 (93.5%)로 가장 값이 높고 통계적으로 유의한 선형함수모형을 최적의 모형으로 결정하고 모형에 대한 해석을 진행하였다. 선형함수모형 결과 방화발생에 영향을 미치는 요인은 범죄발생건수(0.829), 일반이혼율(0.151), 재정자주도(0.149), 소비자물가상승률(0.099) 순으로 도출되었다.

초정밀 나노 스테이지에서의 다중 변위 확대 기구 해석 (Analysis of Multiple Displacement Magnification Mechanism in Ultraprecision Nano Stage)

  • 민경석;최우천
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 2005년도 춘계학술대회 논문집
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    • pp.1273-1276
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    • 2005
  • A displacement magnification mechanism is usually employed in a nano-positioning stage to achieve a large stage motion. A lever mechanism is the most widely used displacement magnifying mechanism. For more large stage motion, double or multiple lever mechanisms can be used. In this case, a more accurate analysis model is needed. This study proposes a more reasonable analysis model for a multiple lever mechanism based on the single lever mechanism model. This paper describes that the high equivalent stiffness of the lever is the most important factor reducing the magnification ratio of the lever mechanism through increasing the deflection of the link and including the axial displacement of the pivot.

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The Effect of Fashion Product Consumers' Need for Uniqueness on their Criteria of Clothing Selection and Switching Intentions

  • Park, Soojin;Park, Sookyeong
    • 패션비즈니스
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    • 제20권3호
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    • pp.54-67
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    • 2016
  • The purpose of this study was to investigate the The effect of fashion consumer's need for uniqueness in their clothing purchase behavior and switching intention. A total of 332 cases were included as the subjects of this study and a survey method was used. The data were analyzed by factor analysis, reliability analysis, t-test and multiple regression analysis using the SPSS 22.0 statistical program. The results were as follows. 1. The 3 dimensions (creative choice, unpopular choice, and avoidance of similarity) were extracted from the consumer's need for uniqueness and consumer divided high uniqueness group, middle uniqueness group, low uniqueness group. 2. The 3 factor (esthetic, functional, practical) were extracted from the clothing selection criteria. The three group had a significant difference in clothing selection and switching intention. Aesthetic factor and practical factor were the highest in high uniqueness group. 3. The need for uniqueness has influence on the aesthetic factor and practical factor. The creative choice factor had positive effect on the aesthetic and practical factor, yet unpopular choice factor had negative effect on the practical factor. The need for uniqueness and aesthetic factor has positive influence on brand switching intentions. 4. There was difference in unpopular choices factor by gender. A monthly average expenditure on fashion products had a significant difference in three kind of need for uniqueness. Results of this study provide a basis understand need for uniqueness and their effect on consumer behavior.

Predicting of tall building response to non-stationary winds using multiple wind speed samples

  • Huang, Guoqing;Chen, Xinzhong;Liao, Haili;Li, Mingshui
    • Wind and Structures
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    • 제17권2호
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    • pp.227-244
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    • 2013
  • Non-stationary extreme winds such as thunderstorm downbursts are responsible for many structural damages. This research presents a time domain approach for estimating along-wind load effects on tall buildings using multiple wind speed time history samples, which are simulated from evolutionary power spectra density (EPSD) functions of non-stationary wind fluctuations using the method developed by the authors' earlier research. The influence of transient wind loads on various responses including time-varying mean, root-mean-square value and peak factor is also studied. Furthermore, a simplified model is proposed to describe the non-stationary wind fluctuation as a uniformly modulated process with a modulation function following the time-varying mean. Finally, the probabilistic extreme response and peak factor are quantified based on the up-crossing theory of non-stationary process. As compared to the time domain response analysis using limited samples of wind record, usually one sample, the analysis using multiple samples presented in this study will provide more statistical information of responses. The time domain simulation also facilitates consideration of nonlinearities of structural and wind load characteristics over previous frequency domain analysis.

류마티스 관절염환자용 다차원적 피로척도의 타당도 및 신뢰도 (Validity and Reliability of Translated Multidimensional Assessment of Fatigue Scale for the Patients with Rheumatoid Arthritis)

  • 이경숙;이은옥
    • 근관절건강학회지
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    • 제5권2호
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    • pp.206-221
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    • 1998
  • The purpose of this study was to validate translated Multidimensional Assessment of Fatigue(MAF) scale. The scale is a 16-item scale that measures four dimensions of fatigue : severity, distress, impact, timing. Fourteen items are numerical rating scales and 2 items have multiple choice responses. Data were collected from the 137 patients with rheumatoid arthritis after content validation. Criterion validity was tested by correlation coefficient with Piper Fatigue Scale, which resulted in 0.7573(p<.0000). Construct validity was tested by item analysis and factor analysis. Corrected item-total correlation coefficients were 0.63-0.88. And factor analysis showed 2 factors : fatigue degree factor and fatigue impact factor. These two factors explained 73.5% of total variance. Reliability of internal consistency was 0.96 in Cronbach's alpha. Further validation study is necessary in each factor in other settings with other subjects.

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노인의 성격상응요인과 생활만족도에 관한 연구 (A Study of Personality adaptation factor and Life Satisfaction of the aged)

  • 김현진
    • 대한가정학회지
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    • 제30권2호
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    • pp.171-187
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    • 1992
  • The purpose of this study is to investigate personality adaptation factors related to life satisfaction of the aged. Personality adaptation factors were classified into four factors(The active-intergration, The dependent-passivity, The failing-overaboundance, The self-negativity). The hypothesises of this study are as follow : (1) Personality adaptation factors can be predited by demographic variables and family environmental variables. (2) Life Satisfaction can be predited by demogaphic variables and family environmental variables. (3) Each personality adaptation factors will be correlated with life satisfaction. For the test of hypothesises, Questionnaries were given to the randomly selected 332 persons over age 60 in Pusan. Questionnaries consist of 4 parts. These are demographic part, family environment part, personality adaptation factor part, and life satisfaction part. The data collected were analyzed by satistical methods such as Case, Percentage Factor Analysis, Multiple Regression Analysis, and Pearson's Correlation. According to the results of the analysis of this study, primary, personality adaptation factor is decided by personal problem. But, this personality adaptation factor of the aged is affected by family environment. Particulary, in the results of the study, frequent communication with their family is more important than physical solidary.

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A Study on the Performances of Strategic Alliance in Liner Shipping

  • Kim, Hyun-Duk;Ahn, Ki-Myoung;Lee, Sung-Yhun
    • 한국항해항만학회지
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    • 제30권7호
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    • pp.579-583
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    • 2006
  • The purpose of this paper is to study a relationship between alliance success factors and performances of strategic alliance. In order to achieve the purpose of this research, factor analysis, reliability and validity and regression method are used. In conclusion, alliance success factors can be divided as mutual complementarity and information sharing factor, sharing and mutual agreement of vision and goal factor, performance management factor and culture and organization factor. According to regression results, all of four factors affects significantly dependent variables. Among them, mutual complementarity and information sharing mostly affects each dependent variable.

외식기업 혼잡 만족 측정 도구 개발에 관한 연구 (A Study on Developing Crowding Measurement Tools for Foodservice Corporations)

  • 전효진;양태석
    • 한국조리학회지
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    • 제12권2호
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    • pp.1-17
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    • 2006
  • This study is to develop a viable measurement tool of crowdedness in restaurants. First, to measure customer’s awareness of crowdedness related to each different environmental factor in a restaurant, 49 factors of crowdedness awareness were selected based on the previous studies and then properties of each factor affecting customer’s satisfaction for crowdedness were analyzed. To analyze effects of each factor upon the satisfaction rate, a Multiple Regression Analysis was conducted with the crowdedness awareness as an independent variable and satisfaction of crowdedness as a dependent variable. The results showed that when an analysis of the environmental factors in the crowdedness awareness was conducted in an effort to develop a measurement tool of crowdedness awareness in restaurants, that would be fit for the domestic food service market, based upon 49 factors of restaurant environment. Focusing on expectation and satisfaction rate, it was found that rating the satisfaction level would be a much more effective tool to measure crowdedness awareness because satisfaction rate appeared to be more closely related to the awareness than the results obtained from the Multiple Regression Analysis with a difference between expectation and satisfaction scores as an independent variable.

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