• 제목/요약/키워드: Explained Variance

검색결과 1,623건 처리시간 0.024초

의복디자인의 평가도구 개발을 위한 연구 -실루엣 평가를 중심으로- (A Study on the Development of a Clothing Design Evaluation Instrument)

  • 이경희
    • 대한가정학회지
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    • 제29권1호
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    • pp.37-49
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    • 1991
  • The purpose of this study was to investigate the visual effects of clothing design. The specific objectives were: 1) to develop a clothing design evaluation instrument using semantic differential scales for the purpose of measuring visual responses with clothing design: 2) to identify the factor structure of the clothing design evaluation instrument: 3) to test the differences of perception to the clothing design depending on sex and knowledge about clothing design. The major findings were: 1. 37 pairs of descriptors of clothing form were found to include five factor dimensions (total variance:62.1%). Five major factors were found: attractiveness, practicability, elegance, comfort, hardness and softness. 2. for the visual evaluation of silhouettes, there were significant differences. H-line was explained by the simple image. A-line was explained by the comfortable image. V-line was explained by the mature and refined image. X-line was explained by the attractive and femine image and evaluated positively. 3. For the visual evaluation of observers, there were partly significant differences depending on sex and knowledge about clothing design in the observers' responses. But there were greater differences depending on sex than knowledge about clothing design in the observers' responses.

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무응답 대체 방법과 대체 효과 (Imputation Methods for Nonresponse and Their Effect)

  • 김규성
    • 한국조사연구학회:학술대회논문집
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    • 한국조사연구학회 2000년도 춘계학술대회 조사연구의 방법론적 쟁점
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    • pp.1-14
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    • 2000
  • 사회.경제조사에서 흔히 발생하는 무응답에 대한 통계적 대처 방안을 고찰하였다. 항목 무응답이 발생했을 때 무응답 데이터를 포함하지 않는 완전 데이터를 만드는 방법으로 무응답 대체 방법이 널리 이용되고 있다. 본 논문에서는 여러 가지 대체 방법을 소개하고 각 방법의 장.단점을 비교.설명하였다. 또한 대체된 데이터를 응답 데이터인 것처럼 활용했을 때 발생하는 문제점들을 지적하였다. 무응답을 대체하면 대체된 값들 때문에 대체 후 추정량의 분산은 대체 분산만큼 증가하는 반면, 대체된 데이터에 기초한 통상적인 분산추정량은 대체 분산을 추정하지 못하므로 결과적으로 대체 후 추정량의 분산을 과소추정하게 된다. 이러한 분산의 과소추정의 원인을 이론적으로 고찰하였고, 모의실험을 통하여 그 결과의 심각성을 설명하였다. 마지막으로 분산의 과소 추정 문제를 해결하는 몇 가지 수정된 분산추정 방법을 소개하고 토의하였다.

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무응답 대체 방법과 대체 효과 (Imputation Methods for Nonresponse and Their Effect)

  • 김규성
    • 한국조사연구학회지:조사연구
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    • 제1권2호
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    • pp.1-14
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    • 2000
  • 사회${\cdot}$경제조사에서 흔히 발생하는 무응답에 대한 통계적 대처 방안을 고찰하였다. 항목 무응답이 발생했을 때 무응답 데이터를 포함하지 않는 완전 데이터를 만드는 방법으로 무응답 대체 방법이 널리 이용되고 있다. 본 논문에서는 여러 가지 대체 방법을 소개하고 각 방법의 장${\cdot}$단점을 비교${\cdot}$설명하였다. 또한 대체된 데이터를 응답 데이터인 것처럼 활용했을 때 발생하는 문제점들을 지적하였다. 무응답을 대체하면 대체된 값들 때문에 대체 후 추정량의 분산은 대체 분산만큼 증가하는 반면, 대체된 데이터에 기초한 통상적인 분산추정량은 대체 분산을 추정하지 못하므로 결과적으로 대체 후 추정량의 분산을 과소추정하게 된다. 이러한 분산의 과소추정의 원인을 이론적으로 고찰하였고, 모의실험을 통하여 그 결과의 심각성을 설명하였다. 마지막으로 분산의 과소추정 문제를 해결하는 몇 가지 수정된 분산추정 방법을 소개하고 토의하였다.

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간호사의 직무이행도, 업무만족도 및 생산성에 대한 예측인자 (Predictors of Job Performance, Work Satisfaction, and Productivity among Korean Hospital Nurses)

  • 이해정
    • 대한간호학회지
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    • 제31권4호
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    • pp.571-583
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    • 2001
  • Purpose: The purpose of this study was to examine the levels of burnout experienced by Korean hospital nurses (N=198), and to identify predictors of their nursing outcomes such as job performance, work satisfaction, and productivity. Method: Hierarchical multiple regression was used to identify predictors of each nursing outcomes. Included predictors were nurses' general characteristics, work- related characteristics (role stress and perceived control), and burnout. Results: Korean nurses experienced higher levels of burnout compared to the cutoffs suggested by Maslach and Jackson (1986) and to those in the USA. For each nursing outcome, predictor variables explained 39% of the variance in role performance, 30% of the variance in work satisfaction, and 38% of variance in productivity. Higher personal accomplishment, lower role ambiguity, being staff nurses, and lower emotional exhaustion were related to higher job performance, and higher productivity. Lower role conflict and role ambiguity were also related to higher work satisfaction. Conclusion: Based on the findings of this study, managemental interventions for nurses to reduce their burnout experience are needed. Further study in this area is warranted.

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일 지역사회 노인의 신체적 건강상태와 건강행위에 관한 연구 (A Survey on Physical Health Status and Health Behavior Practice in Elderly People)

  • 장은희
    • 기본간호학회지
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    • 제11권2호
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    • pp.156-165
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    • 2004
  • Purpose: The purpose of this study was to Identify the physical health status and health behavior practice of elderly people in order to provide basic data for effective nursing interventions to promote health and quality of lift. Method: The participants for this study were 299 elderly persons in D city. Data were collected by interview with a questionnaire. Results: Average score for the physical health status of the participants was 3.98. There was a significant difference in average scores for physical health status for the variables age, sex, marital status, education level, religion, monthly income, source of living expense, perceived health status, alcohol use and type of household. The average score for the health behavior practice of the participants was 99.52, which means that elderly persons have good health behavior. There was a significant difference in average scores for health behavior practice for the variables age, sex, education level, perceived health status and type of household. Perceived health status, education level and alcohol use explained 50.6% of the variance for physical health status. Perceived health status and education level explained 27.4% of the variance for health behavior practice. Conclusion: To promote health behavior in elderly people, it is necessary to develop nursing interventions that take into consideration sociocultural traditions and demographic characteristics.

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노인의 식습관, 일상생활수행능력 및 건강행위가 구강건강 관련 삶의 질에 미치는 영향 (Effects of eating habits, activities of daily living and health behaviors on oral health related-quality of life in elderly persons)

  • 한정희;염영희
    • 기본간호학회지
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    • 제19권2호
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    • pp.179-189
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    • 2012
  • Purpose: The purpose of this study was to identify the effects of eating habits, activities of daily living and health behaviors on oral health related-quality of life in elders. Methods: The sample consisted of 246 people 65 years or older. Data were analyzed using frequency, percentage, average standard deviation, t-test, ANOVA, Scheff$\acute{e}$, Pearson Correlation Analysis and Hierarchical Multiple Regression. Results: The control variables such as gender, presence of a spouse, subjective health status, presence of chronic disease and existing number of teeth explained 14% (F=7.76, p<.001) of variance in oral health related-quality of life. The control variables, eating habits, activities of daily living and health behaviors collectively explained 20% of variance in oral health related quality of life. Conclusions: The factors that influence oral health related quality of life were presence of spouse presence factor, existing number of teeth and health behavior. Therefore, oral health related quality of life of elders requires the development of programs to boost the quality of life, and help the elderly people to maintain existing number of teeth by focusing on the variety of characteristics.

일반 간호사의 직무 스트레스 반응에 대한 결정 요인 (A study on the determinants of job stress responses of the staff nurses)

  • 김정희;박성애
    • 간호행정학회지
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    • 제9권2호
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    • pp.217-232
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    • 2003
  • Purpose : This paper was attempted to identify the job stress related factors among the staff nurses and to provide the basic data concerning development of stress management program focused on hospitals. Method : The subjects were 309 staff nurses at two general hospitals in Seoul. Data were collected with self-reported questionnaires and analyzed by SPSS-PC+10.0 for descriptive analysis, ANOVA, stepwise multiple regression, factor analysis. Results : The subjects exhibit significantly highest level of 'the participation in decision making factor'. The mean score of 'control coping strategies' was higher than 'avoid coping strategies'. The mean scores of social support and stress responses were high. The main factor that affected the stress responses was 'the job characteristic factor' and it was explained 23.0% out of the total variance of the stress responses. Also, it would be explained 42.6% out of the total variance of the stress responses with 'the control coping strategies, work overload factors, social support, and participation in decision making factors'. Conclusion: For developing the hospital- focused stress management program for staff nurses, 'the participation in decision making factors' and 'the job characteristics' should be considered. Also, the organizational efforts and supports should be required to support and use of 'control coping strategies' of nurses

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종합병원 간호사의 소진에 관한 연구: 직장 내 약자 괴롭힘과 부정적 감정성향 중심으로 (An Empirical Study on Burnout in Clinical Nurses: Focused on Bullying and Negative Affectivity)

  • 한정희;양인순;염영희
    • 간호행정학회지
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    • 제19권5호
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    • pp.578-588
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    • 2013
  • Purpose: The purpose of this study was to identify the effects of bullying, negative affectivity and burnout in the nurses. Methods: The sample consisted of 389 nurses. Data were analyzed using frequency, percentage, mean, standard deviation, t-test, ANOVA, Scheff$\acute{e}$, Pearson Correlation Analysis and Hierarchical Multiple Regression. Results: The control variables of age, marital status, education level, current position, health status and work unit explained 30.2%(F=28.9, p<.001) of variance in burnout. The control variables, bullying and negative affectivity collectively explained 49.7% of variance in burnout. Conclusion: The results indicate that the demographic factors influencing burnout are age, education level, health status, work unit, while bullying and negative affectivity in the work places are factors that influence burnout. These findings can be utilized to develop strategies to reduce bullying and negative affectivity.

대사증후군 고위험 근로자의 건강증진 행위에 미치는 영향 요인: 계획적 행위 이론 적용 (Factors Affecting Health Promotion Behavior among Workers with High Risk of Metabolic Syndrome: Based on Theory of Planned Behavior)

  • 박성원;양숙자
    • 지역사회간호학회지
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    • 제26권2호
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    • pp.128-139
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    • 2015
  • Purpose: The purpose of this study was to identify factors affecting health promotion behavior among workers with high risk of metabolic syndrome. This study was based on the planned behavior theory. Methods: The participants were 167 workers at high risk of metabolic syndrome. Data were collected using a structured questionnaire. Surveyed variables were attitude, subjective norm, perceived behavioral control, intention, and health promotion behavior. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients, and hierarchical regression analysis with SPSS/WIN 22.0. Results: Perceived behavioral control affected the intention of health promotion behavior among the workers with high risk of metabolic syndrome. It explained 62% of variance in the intention of health promotion behavior (F=40.09, p<.001). Perceived behavioral control and occupation affected health promotion behavior among the risk workers with high risk of metabolic syndrome. The two factors explained 16% of variance in health promotion behavior (F=4.95, p<.001). Conclusion: The findings of this study suggest that perceived behavioral control is the only factor affecting health promotion behavior when the theory of planned behavior was applied. Therefore, intervention programs for improving health promotion behavior should be focused on strengthening perceived behavioral control.

직무요구와 직무자원이 보건교사의 소진과 열의에 미치는 영향 (The Effects of Job Demands and Job Resources on Burnout and Engagement among School Health Teachers)

  • 권은정;김숙영
    • 한국학교보건학회지
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    • 제30권2호
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    • pp.103-112
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    • 2017
  • Purpose: The Purpose of this study was to examine school health teachers' burnout, engagement, job demands and job resources and to identify the factors that influence burnout and engagement. Methods: The participants were 222 school health teachers working in elementary, middle or high schools. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and hierarchical multiple regression. Results: The significant factors influencing burnout were rewards (${\beta}=-.51$), autonomy (${\beta}=-.15$), and job demands (${\beta}=.13$). These factors explained 42% of the variance in burnout. The significant factors influencing engagement were feedback (${\beta}=.49$), rewards (${\beta}=.21$), type of employment (${\beta}=.15$) and autonomy (${\beta}=.13$). These factors explained 49% of the variance in engagement. Conclusion: The study showed that job demands increase burnout, while job resources such as rewards and autonomy alleviate it. In addition, job resources, such as feedback, rewards and autonomy, increase engagement among school health teachers. Therefore, in order to reduce burnout and increase engagement among school health teachers, it is necessary to reduce the level of job demands and to provide enough job resources such as rewards, autonomy and feedback by improving the job environment.