• 지역사회간호학회지
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• 제29권2호
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• pp.220-230
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• 2018

Purpose: This study was conducted to evaluate clinical competency of nursing students and to examine the validity and reliability of the scale. Methods: The Clinical Competency Scale was formed through modification of Lee's Clinical Competency Scale that was originally developed in 1990. The Clinical Competency Scale was applied to 203 nursing students. Construct validity, item convergent and discriminant validity, concurrent validity, and internal consistency reliability of the scale were evaluated. Results: Exploratory factor analysis supported the construct validity with a five factor solution; that explained 63.6% of the total variance. Concurrent validity was demonstrated with the Nursing Competence Scale (r=.78, p<.001). Cronbach's ${\alpha}$ coefficient for the scale was .96. Conclusion: The results of this study suggest that the Clinical Competency Scale has relatively acceptable reliability and validity and can be used in clinical research to assess clinical competency for nursing students.

• 대한간호학회지
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• 제42권6호
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• pp.853-860
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• 2012

Purpose: The purposes of this study were to develop a Minimal Insomnia Screening Scale for Korean adults (KMISS) and to evaluate psychometric properties and discriminant ability of the developed scale. Methods: Data from a cross-sectional survey of 959 Korean adults were analyzed to develop the summated insomnia scale, which was evaluated in terms of reliability, validity, and discriminant ability by receiver operating characteristics (ROC) curve analysis. Results: Item-total correlations ranged between .71-.79 and Cronbach's ${\alpha}$ was .87. Adequate validity was also evident. ROC-curve analysis showed area under ROC was .87 (95% CI: .84-.90) and identified the optimal cut-off score as ${\leq}20$ (sensitivity, .83; specificity, .75; positive/negative predictive values, .40/.95). Using this cut-off score, the prevalence of insomnia in the study sample was 26.3% and most frequent among women and the oldest group. Conclusion: Data supports the psychometric properties of KMISS as a possible insomnia screening instrument. KMISS also shows promise as a convenient ultra-short screening measure of insomnia for adults and epidemiological studies in community health care settings.

• Asian Pacific Journal of Cancer Prevention
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• 제16권9호
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• pp.3799-3803
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• 2015

Background: The Functional Assessment of Cancer Therapy - Breast (FACT-B) scale is widely used to measure health-related quality of life in cancer patients. The aim of the present study is to validate the FACT-B in a sample of Iranian women with breast cancer. Materials and Methods: The sample consisted of 300 women selected through non-random convenient sampling procedure from oncology hospitals and clinics in Kermanshah and Shiraz cities. They were asked to fill in the Persian versions of the FACT-B scale, Hospital Anxiety and Depression Scale, the European Organization for Research and Treatment of Cancer quality of life EORTC QLQ30. Confirmatory factorial analysis of the methods, concurrent validity and discriminant, and Cronbach's alpha for internal consistency were applied. Results: Internal consistency using Cronbach's alpha was 0.63 to 0.93 for the subscales and 0.92 for the total scale. Significant correlations between FACT-B and other measures indicate that this scale had concurrent and discriminant validity. The values of fit indices were satisfactory. Conclusions: The Persian version of the FACT-B scale is valid and reliable and, therefore, the scale can be used in research and clinical settings to assess health-related quality of life in Iranian patients with breast cancer.

• 예술인문사회 융합 멀티미디어 논문지
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• 제6권2호
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• pp.197-208
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• 2016

이 연구에서는 쓰기에 어려움이 있는 장애학생을 위한 K-HHIW의 측정학적 적합성 탐색을 위해 장애학생을 대상으로 신뢰도와 타당도 검증을 실시하였다. 연구를 위해 번안된 쓰기 자기평가 검사를 국내 특수교육 분야 전문가 40명에게 델파이 조사하였으며, 적합한 21개 문항으로 최종문항을 완성하였다. 이후 개발된 K-HHIW에 대해 장애학생과 비장애학생 350명(장애학생 116명, 비장애학생 234명)이 참여하여 내적합치도 신뢰도 계수를 산출하고, 구인 타당도 검증을 위해 확인적 요인분석을 실시하였다. 연구결과 장애학생의 전체 신뢰도지수는 .927로 비장애학생 신뢰도지수 .889에 비해 높게 나타났으며, 두 집단 모두 하위요인의 신뢰도가 .661에서 .911로 분포하여 비교적 양호한 것으로 나타났다. 또한 K-HHIW의 확인적 요인분석 결과, 장애학생의 경우 RMSEA는 .08로 적합한 수준이며 GFI, CFI, NFI는 비장애학생과 비교했을 때 다소 낮지만 적합한 수준으로 나타났다. 또한 비장애학생의 자기평가 척도의 하위요인에 있어 집중타당성 수준은 양호한 것으로 나타난 반면 장애학생의 경우 비장애학생의 비해 집중타당성 수준이 낮은 것으로 제시되었다. 마지막으로, 비장애학생의 경우 척도의 하위요인 간 어느 정도의 판별타당성이 검증된 반면 장애학생의 경우 신체수행능력과 쓰기수행 하위척도의 판별타당성은 다소 낮은 것으로 나타났다.

• Journal of Biosystems Engineering
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• 제27권2호
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• pp.133-142
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• 2002

This is a fundamental study to develop a sensor to detect weeds in paddy field using machine vision adopted spectralphotometric technique in order to use the sensor to spread herbicide selectively. A set of spectral reflectance data was collected from dry and wet soil and leaves of rice and 6 kinds of weed to select desirable wavelengths to classify soil, rice and weeds. Stepwise variable selection method of discriminant analysis was applied to the data set and wavelengths of 680 and 802 m were selected to distinguish plants (including rice and weeds) from dry and wet soil, respectively. And wavelengths of 580 and 680 nm were selected to classify rice and weeds by the same method. Validity of the wavelengths to distinguish the plants from soil was tested by cross-validation test with built discriminant function to prove that all of soil and plants were classified correctly without any failure. Validity of the wavelengths for classification of rice and weeds was tested by the same method and the test resulted that 98% of rice and 83% of weeds were classified correctly. Feasibility of CCD color camera to detect weeds in paddy field was tested with the spectral reflectance data by the same statistical method as above. Central wavelengths of RGB frame of color camera were tried as tile effective wavelengths to distingush plants from soil and weeds from plants. The trial resulted that 100% and 94% of plants in dry soil and wet soil, respectively, were classified correctly by the central wavelength or R frame only, and 95% of rice and 85% of weeds were classified correctly by the central wavelengths of RGB frames. As a result, it was concluded that CCD color camera has good potential to be used to detect weeds in paddy field.

• 한국사회복지학
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• 제54권
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• pp.5-33
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• 2003

본 연구는 가족을 단위로 개입하는 사회복지 실천 및 연구 현장에 적합한 가족관계를 측정하기 위해 개발된 척도의 일반화 가능성을 검증하는 연구이다. 사회복지분야에서 2001년 개발된 "가족관계척도"를 도구로 하여, 이론적, 논리적 고찰을 통한 액면타당도 검증을 하였으며, 기혼자 집단 분석을 통한 실증적 타당도 검증을 하였다. 액면타당도를 위한 내용분석 결과 정서친밀요인은 긍정적 정서표현, 수용존중요인은 공감, 인정책임요인은 자율성과 유연성의 개념으로 타당도를 확인할 수 있었다. 실증타당도를 위한 분석결과는 구성타당도, 기준관련 타당도, 변별력으로 나누어 실시하였으며, 구성타당도를 위한 탐색적 요인분석에서 누적설명량은 54%, 각 하위요인별 문항들은 0.45 이상의 안정된 부하량을 보여주었고, 확인적 요인분석에서도 모형에 대한 부합지수가 높게 나타났다. 기준관련타당도 중 예측타당도를 위한 회귀분석과 판별분석 결과, 가족관계의 점수가 높을수록 가족스트레스 인식이 유의미하게 낮아지며, 가족스트레스 상 하위집단에서 유의미한 판별이 나타남을 확인하였다. 동시타당도를 위한 상관관계분석 결과 "가족관계척도"의 설명변인으로 부부(r=.54) 및 부모자녀간 의사소통(r=.64)이 가장 높은 긍정적 관계를 보인다. 삶의 만족 수준과 정신건강 수준도 가족관계 수준에 유의미한 긍정적 상관관계를 나타내 가족관계척도와의 수렴타당도를 설명하였고, 신체적 건강 수준은 가족관계 수준과 미약한 관계를 보여주어 가족관계척도의 판별타당도를 보여주는 근거로 검토되었다. 마지막으로 인구사회학적 특성에 따른 가족관계척도의 변별력을 살펴본 결과, 연령, 결혼형태, 경제적 수준, 학력에 대한 "가족관계척도"가 유의미한 차이를 보여주었다. 이상과 같은 연구결과는 대학생 집단을 통해 개발된 "가족관계척도"가 기혼자 집단에서 교차타당성(cross validation)이 확보됨을 보여주고 있으며, 이전 연구에서 밝히지 못한 다양한 기준관련 타당도와 인구사회학적 변별력을 통해 타당도의 일반화를 높였음을 보여주는 것이라 할 수 있다. 또한 사회복지분야에서 처음 개발된 "가족관계척도"가 가족을 대상으로 하는 사회복지연구 및 실천현장에서 사회측정도구(sociometric)로 활용되는데 있어 보다 실증적인 가능성을 제시한 것이라 할 수 있다.

• 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.

• 간호행정학회지
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• 제20권4호
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• pp.362-372
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• 2014

Purpose: The purpose of this research was to develop and test the validity and reliability of the Service Orientation Scale for Health Care Organization. Methods: The Service Orientation Scale for Health Care Organization, $SERV^*OR$, was developed through forward-backward translation methods. Internal consistency and reliability, construct and criterion validity were calculated using SPSS Statistics WIN 17.0. Survey data were collected from 283 clinical nurses in a general hospital in J province. Results: The Service Orientation Scale for Health Care Organization showed reliable internal consistency with Cronbach's ${\alpha}$'s for the total scale ranging from .85~.91. Factor loading of the 30 items on four sub-scales ranged from .67~.83. The sub scales were named service leadership, service system, customer focus, and service control. Item convergent and discriminant validity were also established for the Service Orientation Scale for Health Care Organization. Criterion validity showed a significant correlation with customer orientation. Conclusion: The findings of the study demonstrate that the Service Orientation Scale for Health Care Organization has satisfactory construct and criterion validity, and reliability and can be used to measure service orientation.

• 한국간호교육학회지
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• 제25권3호
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• pp.321-330
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• 2019

Purpose: The purpose of this study was to analyze the validity and reliability of the personality measurement tool for nursing college students. Methods: Questionnaires were issued to 300 nursing students, with 275 eventually collected. The items were confirmed by validity experts. Construct validity was tested using exploratory factor analysis and confirmatory factor analysis. Reliability analysis was tested using Cronbach's ${\alpha}$. Criterion validity was tested by analyzing correlation with the college adjustment scale. Results: Eight factors were confirmed by exploratory factor analysis. Confirmatory factor analysis was used to confirm the model fit (Root-mean-square residual .03; Root-mean-square error of approximation .06; Comparative fit index .92); and convergent validity and discriminant validity were confirmed. In addition, the criterion validity was confirmed through correlation (r=.64, p<.001) with the college adjustment scale. The reliability of this tool was Cronbach's ${\alpha}$ .94. Conclusion: This tool can be used to measure personality in nursing education and can be used to develop and evaluate personality programs.

• 통상정보연구
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• 제9권2호
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• pp.19-40
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• 2007

In recent, T-commerce is widely dispersed as alternative type of commerce. It is forecasted that t-commerce system is used more than e-commerce system. Therefore more and more t-commerce-related industries are also recognizing that t-commerce is a critical business model. It is needed to understand the concept of t-commerce and develop the t-commerce marketing strategy. CEO analyses consumer's behaviors according to the data about buyers and applies the advantage of t-commerce to the communication with customers. This t-commerce system plays an important role in maximizing customer satisfaction and affecting their intention to reuse it. Therefore this paper attempts to identify T-commerce critical success factors and divide between use-intention group and unuse-intention group by taking out a discriminant function by the discriminant analysis. This lays a foundation in developing T-commerce strategy. According to the discriminant function extracted, convenience factor, amusement factor, system quality factor, product perception factor are significant in the sequence of influential degree. However, usefulness factor and speedy connection factor are not significant. In result, the target hitting rate is 77.9% in the first unuse-intention group and it is 95.2% in the second use-intention group. The total discriminant target hitting rate is computed to higher value, 86.55%. The statistic package, SPSS 12.0, is used to survey and analyse data and test the hypothesis. The validity and reliability of variables are verified by both reliability analysis and factor analysis. The discriminant analysis is used to tell the difference between use-intention group and unuse-intention group.