• 제목/요약/키워드: Cronbach's alpha coefficient

검색결과 549건 처리시간 0.024초

한국형 흡연유혹 측정도구 개발을 위한 연구 (Development of a Scale to Measure Korean Smoking Temptation)

  • 장성옥
    • 대한간호학회지
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    • 제34권5호
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    • pp.849-858
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    • 2004
  • Purpose: Smoking temptation is the central concept related to relapse within the context of smoking. Therefore :or effective smoking cessation interventions, a scale to measure smoking temptation is necessary. This study was carried out to develop scale to measure smoking temptation. Method: This study utilized Cronbach's alpha, spilt-half coefficient and test-retest correlation in analyzing the reliability of the collected data and expert group, factor analysis, item analysis multitrait-multimethod method and known-group technique to analyze validity. Result: Twenty-five items were selected from a total of 33 items. The Cronbach's alpha coefficient for internal consistency was .93, spilt-half coefficient .91, and 2 week interval test-retest correlation .93 for the 25 items on the smoking temptation scale. Five factors evolved by factor analysis, which explained 57.28 % of the total variance. The smoking temptation scale was effective in differentiating the subjects at each stage of change for smoking cessation and there were significant negative correlations between smoking temptation and self efficacy for smoking cessation and significant positive correlations between smoking temptation and the Fagerstrom Tolerance Questionnaire. Conclusion: The scale for measuring smoking temptation in Korean in this study was evaluated as a tool with a high degree of reliability and validity.

퇴행성 슬관절염 환자 평가 설문도구의 내적 신뢰도, 상관성에 관한 연구 (The Study about Internal Reliability and Correlation among Assessment Instruments of Knee OA)

  • 류성룡;안경애;서병관;강중원;이상훈;이재동;최도영;김건식;이두익;이윤호
    • Journal of Acupuncture Research
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    • 제22권3호
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    • pp.271-280
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    • 2005
  • 2005년 1월 1일부터 3월 1일 까지 신문과 방송 그리고 경희의료원 홈페이지를 통해 모집된 퇴행성 슬관절염 핀자에 VAS, LFI, WOMAC, KHAQ 의 설문을 시행하여 다음과 같은 결론을 얻었다. 1. LFI, WOMAC Pain Subscale, WOMAC Function Subscale, WOMAC Total Score, KHAQ 모두 Cronbach`s alpha가 0.70이상 (p=.000)으로 내적 신뢰도가 높았다. WOMAC Stiffness Subscle 만이 Cronbach`s alpha가 0.6679(p=.000)이나 이는 문항수가 작기 때문이다. 2. LFI, WOMAC 각 항목, WOMAC Total Score, KHAQ는 모두 Pearson correlation coefficient가 0.612(p=.000)이상으로 높은 상관성을 보였으며, 이중 LFI와 WOMAC Pain Subscale의 상관관계가 비교적 높았다. 이는 통증이 관전기능에 큰 영향을 미치며, 관절염 증상의 악화는 곧 삶의 질에 큰 영향을 미친다는 것을 의미한다. 3. 관절염에 의한 통증, 강직, 관절기능의 제한은 환자의 삶의 질에 큰 영향을 미치게 되므로 관절염의 치료는 통증조절 등의 대증요법이외에 환자의 삶의 질에 초점을 두어야 하고 이를 위해 적절한 설문도구를 활용이 필요하다.

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Reliability and validity of the patellofemoral disability index as a measure of functional performance and subjective pain in subjects with patellofemoral pain syndrome

  • Alshaharani, Mastour Saeed;Lohman, Everett Bernell;Bahjri, Khaled;Harp, Travis;Alameri, Mansoor;Daher, Noha S.
    • Physical Therapy Rehabilitation Science
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    • 제7권2호
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    • pp.61-66
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    • 2018
  • Objective: Patellofemoral pain syndrome (PFPS) is a condition that is characterized by patellar discomfort or pain that is aggravated during certain activities such as ascending/descending stairs. The Patellofemoral Disability Index (PDI) was developed to assess the effect of pain on functional activities in individuals with PFPS. The objectives of the current study were to determine the internal consistency, test-retest reliability, and validity of this index. Design: Cross-sectional study. Methods: Forty-one subjects who had PFPS with a mean age of $28.8{\pm}5.0years$ and a mean body mass index of $25.6{\pm}4.7kg/m^2$ participated in the study. All subjects were concurrently enrolled in a clinical trial for which they were instructed to complete hamstring-resistance exercises for 4 weeks. Over the course of the intervention, they completed both the PDI and the Oswestry Disability Index (ODI) at baseline after two weeks, and after four weeks. Pearson correlation coefficient was used to assess the criterion validity. Cronbach's ${\alpha}$ was used to examine the internal consistency. Intraclass correlation coefficients with 95% confidence interval were computed to examine test-retest reliability. Results: Subjects' responses within both the PDI and the ODI yielded Pearson correlation coefficient values that were positive and highly significant (range, 0.73-0.97; p<0.001). There was a high level of internal consistency (Cronbach's ${\alpha}{\geq}0.8$), with the exception of stair climbing (Cronbach's ${\alpha}=0.65$). Intraclass correlation ranged from 0.87 to 0.92, indicating high levels of test-retest reliability. Conclusions: The PDI is a valid, reliable, and feasible method of assessing pain and functional ability in patients with PFPS.

의료기관 근로자의 환자 개인정보 보호 인식에 대한 평가도구 개발 및 검증 (Development and Validation of an Instrument to Assess Hospital Workers' Perception for Protection of Personal Health Information)

  • 차기정;하영미
    • 한국산학기술학회논문지
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    • 제16권2호
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    • pp.1253-1263
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    • 2015
  • 본 연구의 목적은 의료기관 근로자들의 환자 개인정보 보호에 대한 인식을 평가하는 도구를 개발하고, 개발된 도구의 타당도와 신뢰도를 검증하고자 하였다. 도구의 개발 및 검증과정은 도구의 개념틀 구성, 기초 문항 작성, 내용타당도 검증, 예비조사를 거쳐 최종문항을 추출하였다. 내용타당도는 3명의 보건의료전문가의 검증을 받았고, 구성타당도는 문항분석, 탐색적 요인분석과 확인적 요인분석을 실시하였다. 도구의 신뢰도는 Cronbach's alpha 로 검증하였다. 간호사, 병원 행정직원, 여러 보건의료 종사자들로 구성된 의료기관 근로자 279명을 대상으로 설문조사를 시행하였다. 확인적 요인분석 결과 4요인 모델의 적합도가 높아 구성타당도가 검증되었으며, 4요인 13문항으로 구성된 본 도구의 신뢰도 Cronbach's alpha는 .83이었다. 결론적으로, 본 도구는 의료기관 근로자의 개인정보보호 인식을 측정하기에 타당도와 신뢰도가 검증된 도구인 것으로 나타났다.

아동행동평가척도(CBCL)의 타당화 연구 (The Validation of the Child Behavior Checklist)

  • 한미현;유안진
    • 아동학회지
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    • 제16권2호
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    • pp.5-21
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    • 1995
  • The purpose of this study was to validate the Child Behavior Checklist(CBCL) with a population of Korean children. Subjects were 415 mothers of fourth and sixth graders selected from five elementary schools in Seoul. The CBCL(Achenbach, 1991) and the Child Behavior Questionnaire(CBQ; Rutter et als., 1970) were used as a methodological instrument. Statistics used for data analysis were ${\chi}^2$, Cramer's V, factor analysis, Pearson's r, and Cronbach's ${\alpha}$. The major findings were that 102 items of the 107-item scale were found acceptable through the item discriminant method. Nine factors (anxious behavior, hyperactive behavior, immature behavior, delinquent behavior, aggressive behavior, withdrawn behavior, thought problems, somatic complaints, other problems) were extracted by factor analysis. The correlation between the CBCL and the CBQ was examined to test criterion-related validity, and the coefficient was significant (r=.78, p<.001). Finally, the internal consistency of the CBCL appeared to be at an acceptable level (Cronbach's ${\alpha}$=.83).

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초기성인기 여성의 건강생활습관과 주관적 건강상태 추이조사 (A Transition of Health Habits and Self-rated Health Status of Women Aged in Early Adulthood)

  • 이영란;김명자
    • 한국보건간호학회지
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    • 제23권2호
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    • pp.199-206
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    • 2009
  • Purpose: This study was designed to compare health habit and self-rated health status among early adulthood women in 1995, 2001, and 2007. Also, it was performed to determine correlations between health habits and self-rated health status. Methods: This research was investigated to identify a transition of health habits and self-rated health status. Participants who agreed to participate in the study were 18~25years old college women. Data was collected from 380 college students in 1995, 196 college students 2001, and 411 college students in 2007. Health habit assessment questionnaire was developed by authors. The reliability of the questionnaire were Cronbach $\alpha$=.87. Cronbach $\alpha$=.85, Cronbach $\alpha$=.90. The visual analogue scale which had 100 self-rating scores was used. All statistical analyses were used the Statistical Package for Social Sciences for Windows, Statistical analyses included descriptive statistics, Levene's test, repeated measure ANOVA, Brown-Forsythe test, Turkey test, Games-Howell test, and Pearson correlation coefficient test. Results: Health habit level, and self-rated heath status were significantly increased over time after 1995. Health habits was correlated with self-rated health status. Conclusion: Health habits and self-rated health status were influenced by health environments. Health practitioner can use perceived health status to access health habits.

한국어판 간호대학생의 동료돌봄행위척도(Peer Group Caring Interaction Scale)의 타당도 및 신뢰도 분석 (Validity and Reliability of the Peer Group Caring Interaction Scale-Korean Version)

  • 김정희;공문연;오윤희
    • 대한간호학회지
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    • 제46권3호
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    • pp.431-442
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    • 2016
  • Purpose: This paper was conducted to validate the Korean version of the Peer Group Caring Interaction Scale (PGCIS-K) that measures caring behaviors as experienced by nursing students. Methods: Translation of the PGCIS-K was validated through forward-backward translation methods. Survey data were collected from 218 nursing students in a nursing school. Construct validity and criterion-related validity were evaluated. Internal consistency and the Guttman split-half coefficient were calculated to assess reliability. Results: The PGIS-K showed reliability except for 4 items (Cronbach's ${\alpha}=.91$, Guttman split-half coefficient=.85), which were low (<.30) or negatively correlated with the total scale. A 12-item reduced form of the PGCIS-K was developed by item-analysis and construct validity evidence. Factor loading for the 12 items on 2 factors ranged from .47~.82, which explained 58.4% of the total variance. Two factors were named 'modeling and assistance (Cronbach's ${\alpha}=.87$)' and 'communication and sharing (Cronbach's ${\alpha}=.82$)'. Convergent validity, discriminant validity, and criterion validity were supported according to the correlation coefficients of the 2 factors with other measure. Conclusion: The findings suggest preliminary evidence that the 12-item PGCIS-K can be used to measure nursing students' peer group caring interactions in Korea. Additional studies are recommended to continue the psychometric evaluation of this scale. Also, it can be extended to measure graduate nursing students or staff nurses' peer group caring interaction.

노인요양시설 서비스 질 평가 도구 개발 (Development of an Evaluation Instrument for Service Quality in Nursing Homes)

  • 이지아;지은선
    • 대한간호학회지
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    • 제41권4호
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    • pp.510-519
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    • 2011
  • Purpose: The purposes of this study were to identify the factors influencing service quality in nursing homes, and to develop an evaluation instrument for service quality. Methods: A three-phase process was employed for the study. 1) The important factors to evaluate the service quality in nursing homes were identified through a literature review, panel discussion and focus group interview, 2) the evaluation instrument was developed, and 3) validity and reliability of the study instrument were tested by factor analysis, Pearson correlation coefficient, Cronbach's ${\alpha}$ and Cohen's Kappa. Results: Factor analysis showed that the factors influencing service quality in nursing homes were healthcare, diet/assistance, therapy, environment and staff. To improve objectivity of the instrument, quantitative as well as qualitative evaluation approaches were adopted. The study instrument was developed with 30 items and showed acceptable construct validity. The criterion-related validity was a Pearson correlation coefficient of .85 in 151 care facilities. The internal consistency was Cronbach's ${\alpha}$=.95. Conclusion: The instrument has acceptable validity and a high degree of reliability. Staff in nursing homes can continuously improve and manage their services using the results of the evaluation instrument.

한국어판 전문직 간 교육에 대한 인식 측정도구의 신뢰도와 타당도 검증 (The Reliability and Validity of Korean Version of the Interdisciplinary Education Perception Scale(K-IEPS))

  • 박현정;강희선;강민정
    • 융합정보논문지
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    • 제11권12호
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    • pp.148-157
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    • 2021
  • 본 연구는 한국어판 전문직 간 교육에 대한 인식 측정도구(K-IEPS)의 타당도와 신뢰도를 검증하기 위하여 시행되었다. 연구 방법은 전문직 간 교육에 대한 인식 측정 원도구를 세계보건기구의 가이드라인에 따라 한국어로 번안하였고, 번안된 도구를 활용하여 2020년 12월부터 2021년 1월까지 4개의 대학 보건의료전공 대학생 302명을 대상으로 자료를 수집하였다. 자료 분석은 탐색적 요인분석(EFA), 확인적 요인분석(CFA), 수렴타당도, Cronbach's alpha, 급내 상관계수(ICC)를 사용하여 분석을 실시하였다. 분석 결과, K-IEPS는 2개의 하위요인(역량과 자발성에 대한 인식, 실제적인 협력에 대한 인식)과 10개 문항이 적합하였다. 또한 K-IEPS의 전체문항 신뢰도 Cronbach's alpha는 .87이었고, 검사-재검사 신뢰도는 .83이었다. 본 연구에서 검증된 K-IEPS는 전문직 간 교육에 대한 인식을 측정하는데 타당도와 신뢰도가 있는 도구임이 확인되었다. 따라서 향후에 K-IEPS는 전문직 간 교육에 대한 인식 및 프로그램의 효과를 측정하기 위한 도구로 활용될 수 있을 것으로 기대된다.

한글판 Louisville Instrument for Transplantation 설문지의 신뢰도 및 타당도 평가 (Evaluation of Reliability and Validity of the Louisville Instrument for Transplantation (LIFT) in Korean Population)

  • 김홍민;김지훈;황재하;김광석;이삼용
    • Archives of Plastic Surgery
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    • 제38권3호
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    • pp.245-250
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    • 2011
  • Purpose: Composite tissue allotransplantation has emerged as a new therapeutic modality to reconstruct major tissue defects of the head, neck and extremities. A questionnaire-based instrument, the Louisville Instrument for Transplantation (LIFT), has been developed to objectively assess the risk-versus-benefit ratio for composite tissue allotransplantation procedures. The objective of this study is to assess if the LIFT is a useful, reliable and valid tool to apply to the Korean population. Methods: Seventy-three medical students and 60 lay public completed the LIFT questionnaire (translated to Korean) over the period from February 2010 to April 2010. Internal consistency was assessed using Cronbach's alpha. Test-retest reliability was analyzed using Pearson's correlation coefficient. Construct validity was assessed by comparing Pearson's correlation coefficients between perceived improvements in quality of life and responses to risk tolerance questions concerning organ transplants. Results: Measurements of the test-retest reliability showed that Pearson's correlation coefficients ranged from 0.241 to 0.902, and Cronbach's alphas ranged from 0.52 to 0.80 for medical students and from 0.63 to 0.83 for the lay public. Pearson's correlation coefficients showed significant correlations between perceived improvements in quality of life and responses to risk tolerance questions concerning organ transplants. Hand transplant showed a significant correlation in medical students. Foot, hand, two hands, larynx, partial face transplants showed significant correlations for the lay public. Conclusion: The applicability of the LIFT to the Korean population was found to be reliable and valid. The LIFT may serve as a useful tool for clinical application in the Korean population.