• 정보과학회 논문지
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• 제42권4호
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• pp.459-467
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• 2015

원격탐사 빅데이터 분석 플랫폼은 NASA의 위성 데이터를 다운로드하여 이를 L3 형태로 변환하고, 이를 분석하여 최종적으로 분석 결과보고서를 산출하는 시스템이다. 본 논문의 목적은 최근에 개발된 빅데이터 분석 플랫폼의 품질을 평가하기 위한 평가지표 개발을 연구목표로 한다. 따라서 본 논문은 기존의 ISO/IEC 9126-1국제 소프트웨어 품질 모델을 기반으로 원격탐사 빅데이터 플랫폼의 품질 평가지표의 개발을 연구목표로 한다. 아울러 세부적인 연구개발내용은 다음과 같다. 첫째, ISO/IEC의 소프트웨어 품질 규정과 기존의 소프트웨어 평가모델을 검토한다. 둘째, 본 논문은 원격탐사 빅데이터 분석 플랫폼을 평가하기 위한 평가영역과, 세부적인 평가요소, 평가항목, 평가기준을 정의한다. 플랫폼 품질 평가요소에는 원격탐사 빅데이터 플랫폼의 개발자 측면, 사용자 측면, 유지보수 측면에서의 품질요소 등을 포함할 것이다. 셋째, 제안된 평가지표는 설문을 통해 내용타당도, 신뢰성 분석, 확인적 요인분석 및 경로분석을 통한 구인타당도의 통계분석을 통해 그 타당성과 적합성 검증을 입증하였으며, 통계도구로 SPSS 20.0 프로그램과 Amos 20.0을 이용하여 실험하였다. 마지막으로 본 연구결과는 빅데이터 분석 플랫폼에 대한 평가준거 개발의 첫 시도라는 점에서 중요하며, 앞으로 개발될 유사 빅데이터 플랫폼의 평가준거의 기초자료로서 활용이 기대되고 플랫폼의 평가기준의 토대가 될 것이라 기대된다.

• 대한간호학회지
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• 제44권6호
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• pp.595-607
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• 2014

Purpose: The Braden Scale is one of the most intensively studied risk assessment scales used in identifying the risk of developing pressure sore. However, not all studies show that the predictive validity of this scale is sufficient. The purpose of this study was to evaluate the Braden Scale for predicting pressure ulcer development. Methods: Articles published 1946 and 2013 from periodicals indexed in Ovid Medline, Embase, CINAHL, KoreaMed, NDSL and other databases were selected, using the following keywords: 'pressure ulcer'. The QUADAS-II was applied to assess the internal validity of the diagnostic studies. Selected studies were analyzed using meta-analysis with MetaDisc 1.4. Results: Thirty-eight diagnostic studies with high methodological quality, involving 17,934 patients, were included. Results of the meta-analysis showed that the pooled sensitivity and specificity of the Braden Scale were 0.74 (95% CI: 0.72-0.76), 0.75 (95% CI: 0.74-0.76) respectively. However the predictive validity of the Braden Scale has limitation because there was high heterogeneity between studies. Conclusion: The Braden Scale's predictive validity of risk for pressure ulcer is interpreted as at a moderate level. However there is a limitation to the interpretation of the results, because of high heterogeneity among the studies.

• 대한간호학회지
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• 제48권1호
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• pp.70-84
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• 2018

Purpose: This study was conducted to evaluate the validity and reliability of the Korean version of the clinical learning environment, supervision and nurse teacher evaluation scale (CLES+T) that measures the clinical learning environment and the conditions associated with supervision and nurse teachers. Methods: The English CLES+T was translated into Korean with forward and back translation. Survey data were collected from 434 nursing students who had more than four days of clinical practice in Korean hospitals. Internal consistency reliability and construct validity using confirmatory and exploratory factor analysis were conducted. SPSS 20.0 and AMOS 22.0 programs were used for data analysis. Results: The exploratory factor analysis revealed seven factors for the thirty three-item scale. Confirmatory factor analysis supported good convergent and discriminant validities. The Cronbach's alpha for the overall scale was .94 and for the seven subscales ranged from .78 to .94. Conclusion: The findings suggest that the 33-items Korean CLES+T is an appropriate instrument to measure Korean nursing students'clinical learning environment with good validity and reliability.

• 응용통계연구
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• 제29권5호
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• pp.921-933
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• 2016

본 연구는 대안이 많지 않은 의사결정에서 계층적 의사결정론(analytic hierarchy process)과 컨조인트 분석 간의 비교를 다루었다. 계층적 의사결정론은 속성들의 쌍대비교 과정을 거쳐 속성의 중요도를 추정한 후 대안들의 순위를 추정하는 방법이며, 컨조인트 분석은 대안의 순서로부터 속성의 효용을 추정하는 방법으로, 의사결정의 과정이 다르기에 두 방법을 직접적으로 비교하는 것은 다소 한계가 있다. 본 연구에서는 Scholl (2004)의 타당도 척도를 사용하여 두 방법을 S대학 여학생들의 화장품 선택 사례 연구를 통하여 두 방법을 서로 비교하였다. 사례연구 결과 컨조인트 분석은 내적타당도가 높게 나타났으며, 계층적 의사결정분석 방법은 예측타당도가 높게 나타남을 볼 수 있었다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권9호
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• pp.4235-4240
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• 2012

Objectives: Family caregivers (FCs) are often the primary source of social and emotional support for cancer patients and play a major role in how well they manage their illness. The aim of this study was to create an Turkish version of the Quality of Life - Family Version (QOL-FV) and to evaluate its psychometric properties in a sample of FCs of cancer patients. Materials and Methods: This study was carried out with the FCs of 218 patients with cancer. Data were collected with a Demographic Questionnaire and the QOL-FV and The Multidimentional Scale of Perceived Social Support (MSPSS). The QOL-FV was developed by Ferrell and Grant and is composed of 4 subdimensions. Linguistic validity, translation, back translation, and content validity were tested with expert opinions. Test-retest reliability, and internal consistency reliability were assessed. Construct validity was tested by factor analysis and with the scale of the MSPSS. Results: The family caregivers were between the ages of 46-56 (32.6%), a great number of them being male (52.8%). The scale is made up of four subdimensions. The result of the test-retest analysis of this scale was calculated as r:0.86. As a result of the reliability analysis, six items were eliminated from the scale, factor analyses were fulfilled according to varimax transformation through the method of principal components. Four new subdimensions were restrustured at the end of the analysis. The scale of Cronbach ${\alpha}$ coefficient was calculated as 0.90. Concurrent validity showed low correlations with the MSPSS (r=0.29). Conclusions: The QOL-FV, adapted into Turkish, was found to have sufficient reliability and validity.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제36권2호
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• pp.201-227
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• 2022

한국 고등학교 학생들에게 적합한 수학불안 요인 측정도구를 개발하기 위하여 요인 탐색, 문항 개발, 타당도 및 신뢰도 검증의 단계로 연구를 실시하였다. 이를 위하여 문헌분석을 통해 기 개발되어 사용되어온 문항을 수정 보완하고, 학생들을 대상으로 한 개방형 조사를 통해 사교육 및 수학 교수 방법에 대한 시대적 배경을 반영한 신규 문항을 추가하였다. 개발된 측정문항에 대한 탐색적 요인분석과 확인적 요인분석을 통해 타당도를 검증하였으며, 연구 결과, 수학교과의 특성에 기인하는 불안 요인이 구체화되었고, 모둠학습이나 발표수업 등과 같은 교수학습 방법 등이 반영되었다.

• 대한간호학회지
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• 제53권1호
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• pp.12-27
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• 2023

Purpose: This study aimed to develop a scale to measure distress in patients with ischemic stroke and verify its validity and reliability. Methods: Preliminary items were developed from literature review and in-depth interviews. The final preliminary scale was confirmed through a content validity test of eight experts and a preliminary survey of 10 stroke patients. The participants for psychometric testing were 305 stroke patients in the outpatient clinic. Validity and reliability analyses included item analysis, exploratory and confirmatory factor analysis, convergent validity, known-group validity, and internal consistency of the scale. Results: The final scale consisted of 17 items and 3 factors. The three distinct factors were 'self-deprecation, worry about future health, and withdrawal from society' and this structure was validated using a confirmatory factor analysis. Convergent validity was supported by comparison with the Center for Epidemiologic Studies Depression Scale (r = .54, p < .001) and Brief Illness Perception Questionnaire (r = .67, p < .001). Known-groups validity was verified by dividing groups according to 'duration since diagnosis' (t = 2.65, p = .009), 'presence of sequela' (t = 10.16, p < .001), and 'awareness of distress' (t = 12.09, p < .001). The internal consistency of the scale using Cronbach's α for the total items was .93. Conclusion: The Ischemic Stroke Distress Scale is a valid and reliable tool that reflects stroke distress effectively. It is expected to be used as a basic tool to develop various intervention strategies to reduce distress in ischemic stroke patients.

• 대한간호학회지
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• 제40권2호
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• pp.236-246
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• 2010

Purpose: The purpose of this study was to develop and evaluate a Korean questionnaire to measure resilience in children with chronic illness. Methods: Item construction was drawn from an extensive review of the literature, existing questionnaires and interviews with parents. Content validity was tested by experts. To further refine the questionnaire and test its reliability and validity, data were collected from the 202 children with asthma, diabetes mellitus or nephrotic syndrome. Corrected items were used to total correlation coefficient and test-retest reliability. Questionnaire testing was conducted using factor analysis, Cronbach's $\alpha$, and correlation coefficients. Validity of the questionnaire was tested using internal consistency, construct validity, and criterion-related validity. Results: Components of the questionnaire were in three domains; interpersonal characteristics, characteristics of coping, and intrapersonal characteristics. Factor analysis is showed five factors; positive self-understanding, self-reliance, resourcefulness, perception of positive family relationships, and intimacy. The questionnaire showed a high internal consistency. A significant positive correlation with the Numerical Rating Score and negative correlation with the Child Depression Inventory support the validity of the questionnaire. Conclusion: This instrument demonstrated high reliability and validity. Therefore, this instrument can contribute to the evaluation of resilience of chronically ill children and to any subsequent intervention as well as to develop a theory for resilience.

• 아동학회지
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• 제37권6호
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• pp.35-56
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• 2016

Objective: This study aimed to develop and validate the Childcare Adaptation Scale for Infants and Toddlers (CASIT), which is rated by teachers of Korean children. Methods: The participants consisted of 326 childcare teachers working with infants (ages 0-2 years). Content validity, discriminant validity, convergent validity, concurrent validity, internal consistency, inter-rater reliability, and item discrimination were examined using PASW 18.0 and AMOS 19.0. Results: The results of an exploratory factor analysis identified the 29-item scale and six dimensions of the scale, including group life adaptation, negative behaviors, positive affect, regular routines, activity/interest, and peer interaction. Convergent validity was examined via confirmatory factor analysis, average variation extracted (AVE), and construct reliability, and acceptable evidences of convergent validity was established. The scales were shown to be highly consistent internally and among raters. Also, the mean between the upper group and lower group of each item regarding item discrimination showed a significant difference. Conclusion: It was concluded that the CASIT, which is a quick and convenient tool for teachers to use, is a valid and reliable instrument.

• Child Health Nursing Research
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• 제24권3호
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• pp.274-286
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• 2018

Purpose: This study aimed to test the validity and reliability of the Korean version of the Families' Importance in Nursing Care-Nurses' Attitudes (FINC-NA) instrument developed by Saveman et al. Methods: The 222 pediatric nurses' data were collected from 13 hospitals in South Korea and were analyzed using descriptive statistics, exploratory factor analysis, the Pearson correlation coefficient, and the Cronbach's ${\alpha}$ in SPSS software. The AMOS program was used to conduct confirmatory factor analysis of construct validity. Results: Of the 26 initial items, 24 were ultimately selected after evaluating content validity, construct validity, and reliability. The following 6 factors were included in the Korean version of the Families' Importance in Nursing Care-Pediatric Nurses' Attitudes (KFINC-PNA): family as a 'conversational partner', 'participant in care', 'supporter for the nurse', 'burden', 'recipient of empowerment', and 'its own resource'. Conclusion: The KFINC-PNA was partially modified to explain differences in language and culture, but its validity and reliability were verified. Pediatric nurses' attitudes can be assessed using the KFINC-PNA, and adjustments to the care of hospitalized children and their families can be made based on these items. We recommend developing and verifying intervention methods that will improve family-centered care for hospitalized children and their families.