• Journal of Chest Surgery
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• 제48권2호
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• pp.112-119
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• 2015

Background: Pectus excavatum (PE) is the most common chest wall deformity. The Nuss Questionnaire modified for Adults (NQmA) is a disease-specific health-related quality of life assessment tool for patients with pectus deformities. The aim of this study is to adapt the NQmA into Turkish. Methods: Two hundred and sixty-five patients with PE were participated, with an age range of 14 to 29 years. All patients underwent a physical examination and had not undergone corrective surgery. The Turkish version of the NQmA was completed by patients and their parents. Results: The content validity index based on expert opinions was 91% for the patient questionnaire and 96% for the parent questionnaire. The Cronbach's alpha value for the NQmA was found to be 0.805 for the patient questionnaire and 0.800 for the parent questionnaire. Exploratory factor analysis was used to assess construct validity. Two factors explained 51.1% of the total variance in the patient questionnaire (psychosocial: 31.145%, Cronbach's alpha=0.818; physical: 19.955%, Cronbach's alpha=0.862). In the parent questionnaire, two factors explained 51.422% of the total variance (psychosocial: 26.097%, Cronbach's alpha=0.743; physical: 25.325%, Cronbach's alpha=0.827). Construct validity was confirmed by confirmatory factor analysis. Conclusion: The Turkish version of the NQmA was found to be valid and reliable for the assessment of quality of life in patients with PE.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2008년도 추계학술대회
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• pp.353-359
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• 2008

Somatotype is a very important factor for the comfortable and safe work environments. Many researches are trying to find the characteristics of somatotype according to age. Thus, the main objective of this study is to analyze somatotype of male residents in Seoul. The data used in this study included 267 men subjects who are living in Seoul. In order to analyze a detailed somatotype of citizens, age groups are divided into six groups. In order to compare and analyze data, Coefficient of Variance, Cronbach's Alpha, $R\ddot{o}hrer$ Index and Drop Value were used in this study. The results of this study can be applied to the comfortable and safe work environments for workers.

• 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.

• 여성건강간호학회지
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• 제24권1호
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• pp.33-48
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• 2018

Purpose: The purpose of this study was to develop a scale to evaluate parenting stress of international marriage immigrant women from Vietnam and the Philippines. Methods: The concept of parenting stress of international marriage immigrant women was analysed with a hybrid model. Data were collected from 273 international marriage immigrant women from Vietnam and the Philippines who were raising their children aged 1 to 6 years. These collected data were subjected to exploratory factor analysis, multitrait/multi-item matrix assessment, Pearson correlation coefficient analysis, and Cronbach's alpha internal consistency measurement. Results: The final instrument consisted of 28 items. The following six factors were extracted by exploratory factor analysis: 'insufficiency of parenting support system', 'role burden of mothers', 'maladjustment of children', 'confusion of parenting methods due to cultural differences', 'unskilled Korean communication', and 'ordinary difficulties'. Construct validity (factor analysis, convergent validity, and discriminant validity) and criterion-related validity were confirmed. Cronbach's ${\alpha}$ value of total items was .92(95% CI .91-.94). Cronbach's ${\alpha}$ of values for these factors ranged from .76 to .85. Conclusion: The parenting stress scale for international marriage immigrant women is a valid and reliable tool.

• 디지털융복합연구
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• 제11권12호
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• pp.639-647
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• 2013

이 연구는 정신장애인의 회복을 측정하는 도구를 개발하고 타당도와 신뢰도를 검정하는 방법론적 연구이다. 3회에 걸친 요인 분석 후 고유값이 1.0이상인 요인이 총 3개 추출되었고 설명력은 58.1%였으며 모든 항목이 공통성과 요인적재량의 기준에 적합하여 삭제되는 문항이 없어 최종 25개 문항이 선정되었다. 준거타당도 검정에서는 Pearson 상관계수는 .71로 유의하였으며(p<.01) 각 요인과도 유의하게 상관관계를 보였다(p<.01). 신뢰도 검정 결과 Cronbach's ${\alpha}$ 계수는 .95였으며 각 요인별 Cronbach's ${\alpha}$ 계수는 .87에서 .93까지 분포하였다. 본 연구를 통해 개발된 3개 요인 25개 문항의 정신장애인의 회복 측정도구는 타당도와 신뢰도가 모두 검정된 도구이므로 정신장애인을 대상으로 하는 실무 및 연구영역에서 활용하여 회복을 촉진하도록 하는데 도움이 될 수 있을 것이다.

• Restorative Dentistry and Endodontics
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• 제49권1호
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• pp.3.1-3.8
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• 2024

This article is a narrative review that discusses the recommended sample size requirements to design a pilot study to assess the reliability of a questionnaire. A list of various sample size tables that are based on the kappa agreement test, intra-class correlation test and Cronbach's alpha test has been compiled together. For all calculations, type I error (alpha) was set at a maximum value of 0.05, and power was set at a minimum value of 80.0%. For the kappa agreement test, intra-class correlation test, and Cronbach's alpha test, the recommended minimum sample size requirement based on the ideal effect sizes shall be at least 15, 22, and 24 subjects respectively. By making allowances for a non-response rate of 20.0%, a minimum sample size of 30 respondents will be sufficient to assess the reliability of the questionnaire. The clear guideline of minimum sample size requirement for the pilot study to assess the reliability of a questionnaire is discussed and this will ease researchers in preparation for the pilot study. This study provides justification for a minimum requirement of a sample size of 30 respondents specifically to test the reliability of a questionnaire.

• 대한한의진단학회지
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• 제21권1호
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• pp.13-25
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• 2017

Objectives The purpose of this study was to evaluate the reliability and the validity of Mibyeong Questionnaire (MQ). The subjects enrolled in this study was 165 from July 2015 to Jan. 2016. The surveys were conducted twice with 3 month terms. Methods The Cronbach's ${\alpha}$ analysis for internal reliability, Pearson Correlation Coefficient analysis for test-retest reliability, Factor analysis with varimax rotation for construct validity, Kappa analysis for diagnostic reliability were used. The significant p-value was less than 0.05. Results and Conclusions The result showed that the Cronbach's ${\alpha}$ of MQ was .857-.937 and total was .913. The reliabilities between test and retest for the MQ were .666-.832 (0.416-0.673, in case of including recovery question) in intraclass correlation coefficient (ICC). The Kappa of recovery question in each item was ranged 0.23(80.6% in agreement rate) to .46(87.9% in agreement rate). In test-retest the Kappa value of Mibyeong diagnosis referred by median value was .418(71% in agreement rate). This study revealed that MQ is a reliable and valid questionnaire.

• PNF and Movement
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• 제10권1호
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• pp.1-7
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• 2012

Purpose : To verify the interrater reliability of upper extremity function assessment among three tools(Wolf motor function test, Motor assessment scale, Fugl-meyer assessment scale). Methods : The subjects of this study 40 (20 was physical therapists and 20 was physical therapy students). For the test one patients with chronic hemiparesis after stroke participated in the study. The Wolf Motor Function Test consists of 16 functional tasks. The motor assessment scale consists of 3 functional tasks. The fugl-meyer assessment scale consists of 8 functional tasks. All test sessions were videotaped and scored by 40 subjects. Analysis : The data was analysis by SPSS PC 14.0 with Cronbach alpha Coefficients, intraclass Correlation Coefficients Kendall tau-b value. Results : WMFT was highly scored in Cronbach's value, Cronbach's ${\alpha}=0.819$ that means high interrater reliability among assessment. WMFT was highly scored all items in p-value except one item, that means high p-value between therapists and students. WMFT was highly scored in Intrarater correlation coefficient (ICC) = 0.79, that means high interrater reliability of each examination item. WMFT was low index of coincidence from all items, MAS was low index of coincidence from a tim and FMA was low index of coincidence from 4 items. Conclusion : The interrater reliability of WMFT were compared with MAS, FMA and highly verified. WMFT can be more useful tool among upper extremity function assessment.

• 디지털콘텐츠학회 논문지
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• 제16권6호
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• pp.883-892
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• 2015

본 논문에서는 단조롭고 일률적으로 보여주는 축제 앱의 단점을 보완하기 위하여 문화관광축제 종합 평가 보고서의 만족도 평가항목과 국내 외 학자들의 축제 품질요인을 이용하여 요인분석을 실시하였다. 요인분석 결과 탐색적 요인분석에서 KMO 값은 0.821로서 나타났다. 요인적재치가 기준 이하인 항목은 제거를 하여 축제 검색요인은 접근성, 홍보안내, 행사내용, 축제상품, 먹을거리, 편의시설을 도출하였다. 신뢰도 분석에서는 Cronbach's ${\alpha}$(Alpha)값이 0.816으로 나타났다. 확인적 요인분석에서는 카이스케어 검정결과 p값이 0.289로 나타났으며, CMIN/DF 값도 1.100로 나타났다. GFI, AGFI, CFI, NFI, IFI 모두 적합도 기준치인 0.9 이상으로 나타났고 RMSEA 역시 0.018로 나타났다.

• 대한안전경영과학회지
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• 제10권1호
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• pp.59-65
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• 2008

Recently, obesity that is increasingly becoming a major cause of various diseases and safety accidents in work places is emerging as a serious social problem. It is due to economic growth and improvement of living environments. Many researches are trying to find the root cause of obesity. Thus, the main objective of this study is to analyze obesity index of citizens in Seoul which is a metropolis of Korea and a densely populated district. The data used in this study included 179 men and 152 woman subjects who are living in Seoul. Somatotype using $R\ddot{o}hrer$ Index can be classified by 3 types (thin, standard, obesity). In order to analyze a detailed somatotype of citizens, age groups are divided into $30{\sim}34,\;35{\sim}39,\;40{\sim}49,\;and\;50{\sim}59$ years according to gender, respectively. In order to compare and analyze data, Coefficient of Variance, Cronbach's Alpha, $R\ddot{o}hrer$ Idex and Drop Value were used in this study. The results of this study can be applied to the comfortable and safe work environments for workers.