• 대한한방내과학회지
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• 제41권3호
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• pp.293-305
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• 2020

Purpose: This study aimed to develop a questionnaire for the diagnosis of chronic fatigue syndrome (CFS) designed based on the systematic exertion intolerance disorder (SEID) criteria, and to validate the reliability of the questionnaire. Methods: A literature search on questionnaires for CFS diagnosis was conducted to develop a SEID questionnaire (SEID-Q27), followed by a pilot survey to identify the reliability of the questionnaire. Adults (Daejeon university personnel) with a Chalder fatigue scale (CFQ) score ≥15 were invited for the survey. We commenced the survey in November 2019 with a two weeks of interval for the test and retest method. The reliability of the questionnaire was investigated in three angles: 1. Cronbach's α, 2. correlations (r) of the questions, numerical rating scale (NRS), and visual analog scale (VAS), and 3. kappa (k) analysis. Results: Among the total 275 adults registered, 55 (20%) participants with a CFQ score ≥15 were invited, and 31 (11%) [15 male, 16 female] completed the questionnaire. The total Cronbach's α was 0.944 for the test and 0.949 for the retest. The reliability (r) of questions by CFQ score (≥15, ≥18, ≥20) ranged from 0.533-0.928 (p <0.05), and the r score of the NRS and VAS were the highest in CFQ scores ≥20, at 0.933 (p<0.001). The agreement rate of the SEID-Q27 between the test and retest was 87% (kappa k=0.743). Conclusions: The SEID-Q27 seems to be reliable. Further studies are needed to measure the validity of the tool and the cutoff point.

• 근관절건강학회지
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• 제21권3호
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• pp.184-194
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• 2014

Purpose: The purpose of this study was to develop and validate a diabetes management self-efficacy scale for older adults (DMSES-O). Methods: A preliminary DMSES-O of 22 items was derived from a literature review and seven domains of self-management behaviors. Content validity was confirmed by experts in diabetes self-management education. To test the reliability and validity of the DMSES-O, data were collected from 150 older adults with type 2 diabetes. The data were analyzed using exploratory factor analysis, and Cronbach's ${\alpha}$ and Pearson's correlation coefficients were calculated. Results: From the exploratory factor analysis, 17 significant items in six subscales were derived. Factors derived were named "problem solving for hypoglycemia and self-monitoring blood glucose," "problem solving for hyperglycemia," "coping with psychological distress and taking medication," "reducing risks of diabetes complications," "appropriate exercise," and "healthy eating." The criterion-related validity of the DMSES-O was established by its correlation with the Summary of Diabetes Self-care Activities Questionnaire. Cronbach's ${\alpha}$, a measure of internal consistency, was .84 for the overall scale and ranged from .54 to .80 for the subscales. Conclusion: The DMSES-O is a reliable and valid instrument to measure selfefficacy for diabetes self-management among older adults.

• 한국심리학회지 : 문화 및 사회문제
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• 제28권2호
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• pp.107-131
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• 2022

본 연구는 직장 내 괴롭힘 주변인 행동을 측정하는 척도를 개발하고 타당화하는 것을 목적으로 실시되었다. 이를 위해 직장 내 괴롭힘 관련 선행연구를 참고하여 문항을 개발하고, 친가해행동, 방어행동, 방관행동으로 하위유형을 규정하였다. 전문가를 통한 내용 타당도 확인 후 총 31문항의 예비문항을 구성하였다. 지난 3년간 직장 내 괴롭힘을 직·간접적으로 목격한 민간기업 사무직 직장인 288명의 설문자료로 탐색적 요인분석을 실시하여 최종문항 26개를 선정하였으며, 이 과정에서 방어행동이 적극적 유형과 지지적 유형 두 가지 구인으로 변별됨이 확인되었다. 지난 1년간 직장 내 괴롭힘을 직·간접적으로 목격한 민간기업 사무직 직장인 518명의 자료로 확인적 요인분석을 실시하고 개발된 척도의 타당성과 신뢰성을 확인하였다. 하위유형의 재확인을 위해 경쟁모형 비교를 실시한 결과 적극적 방어행동과 지지적 방어행동이 변별됨이 재차 확인되었다. 직장 내 괴롭힘 가해행동, 조직 내 이타적 행동, 친 사회적 행동, 개입에의 공포, 도덕적 이탈, 죄책감, 도덕적 정체성의 준거변인을 설정하여 모든 하위유형의 준거 관련 타당도를 확인하였다. 본 연구의 결과로 직장 내 괴롭힘 주변인 행동과 관련된 후속 연구 과제와 직장 내 괴롭힘 예방 및 개입에 있어 주변인 행동을 활용할 방안에 대해 논의하였다.

• 한국심리학회지 : 문화 및 사회문제
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• 제15권4호
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• pp.565-589
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• 2009

본 연구에서는 게임 사용의 부정적 결과에 초점을 둔 선행 연구와 달리, 게임활용의 긍정적 결과로서의 적응적 게임활용도를 측정하는 도구를 개발하고 타당화하였다. 예비조사를 통해 적응적 게임활용 측정 도구를 개발하고, 유층표집을 통해 선정된 전국 중고등학생 600명을 대상으로 본조사를 실시하였다. 연구결과 활력 경험, 생활경험 확장, 여가 선용, 몰입 경험, 자긍심 경험, 통제력 경험, 사회적 지지망 유지 및 확장 등 7개의 요인으로 구성되는 척도의 신뢰도와 시간에 걸친 안정성이 확인되었다. 또한, 척도의 구성타당도, 변별타당도, 및 공인타당도를 확인하였다. 게임 연구의 외연 확장과 관련한 본 연구의 시사점과 장래 연구 방향을 논의하였다.

• 한국간호교육학회지
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• 제27권2호
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• pp.197-209
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• 2021

Purpose: The purpose of this study is to evaluate the validity and reliability of the Korean Bereavement Care Confidence Scale (K-BCCS). Methods: The Perinatal Bereavement Care Confidence Scale (PBCCS) was translated into Korean according to an algorithm of cultural adaptation process and excluded six items which were specific to perinatal bereavement. A total of 229 clinical nurses participated in the study. Construct validity, convergent validity, discriminant validity, and group comparison validity were evaluated, and Cronbach's α was calculated to estimate the reliability of the K-BCCS. Results: The K-BCCS consisted of 31 items in 7 factors, including knowledge and skills for bereavement care (12 items), organizational support (6 items), awareness of the needs (3 items), interpersonal skills (3 items), workload influence (2 items), continuous education (2 items), and understanding the grief process (3 items). The factor loading of 31 items within the 7 factors ranged from .60 to .86. For the convergent validity, the construct reliability (CR) ranged from .74 to .94, and the average variance extracted (AVE) ranged from .49 to .73, which is considered acceptable. The discriminant validity showed that the AVEs of the subscales were greater than the square of the correlation coefficient r. The nurses who had experience providing bereavement care (t=4.94, p<.001) or had received bereavement education (t=6.64, p<.001) showed higher K-BCCS values those without experience. The Cronbach's α of 31 items was .93 and ranged from .60 to .94 per subscale. Conclusion: The K-BCCS is a valid and reliable tool for evaluating nurses' confidence in bereavement care.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제21권4호
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• pp.431-444
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• 2018

본 연구에서는 문헌연구와 초등학교 3-6학년 학생들을 대상으로 한 설문의 통계적 검증을 토대로 초등학교 학생을 대상으로 하는 수학 불안 측정 도구를 개발하였다. 측정 도구는 수학 사교육 여부와 상관없이 수학 불안을 측정할 수 있는 도구와 수학 사교육에 참여하는 학생들에게 추가적으로 적용할 수 있는 도구, 총 2종으로 개발되었다. 문헌 연구 결과를 바탕으로 수학 불안 측정 도구는 수학 시험, 수학 수업, 수학 교사, 수학 수업과 관련한 부모님의 태도, 수학 상황에 대한 걱정이라는 다섯 가지 요인을 기반으로 설계되었다. 수학 사교육 관련 수학 불안 측정 도구는 사교육 수학 시험, 사교육 수학 수업, 사교육 교사라는 세 가지 요인을 기반으로 제작되었다. 본 연구에서는 신뢰도 검증을 위해 두 측정 도구에 대해 주성분분석(Principal Component Analysis)을 실시하였다. 또한 연구 참여자에게 수학 불안과 음의 상관관계가 있는 것으로 알려져 있는 수학 자기 효능감 측정 도구를 적용, 본 연구에서 개발한 측정도구와의 상관관계를 통계적으로 분석하여 타당도 검증을 실시하였다. 문헌연구, 통계적 분석을 기반으로 한 신뢰도 타당도 검증을 통해 본 연구에서는 21개의 수학 불안 측정도구 문항과 7개의 수학 사교육 관련 수학 불안 측정 도구 문항을 확정하였다.

• Psychiatry investigation
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• 제15권11호
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• pp.1053-1063
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• 2018

Objective This study evaluated the psychometric properties of the Korean Anxiety Screening Assessment (K-ANX) developed for screening anxiety disorders. Methods Data from 613 participants were analyzed. The K-ANX was evaluated for reliability using Cronbach's alpha, item-total correlation, and test information curve, and for validity using focus group interviews, factor analysis, correlational analysis, and item characteristics based on item response theory (IRT). The diagnostic sensitivity and specificity of the K-ANX were compared with those of the Beck Anxiety Inventory (BAI) and Generalized Anxiety Disorder 7-item scale (GAD-7). Results The K-ANX showed excellent internal consistency (${\alpha}=0.97$) and item-total coefficients (0.92-0.97), and a one-factor structure was suggested. All items were highly correlated with the total scores of the BAI, GAD-7, and Penn State Worry Questionnaire. IRT analysis indicated the K-ANX was most informative as a screening tool for anxiety disorders at the range between 0.8 and 1.6 (i.e., top 21.2 to 5.5 percentiles). Higher sensitivity (0.795) and specificity (0.937) for identifying anxiety disorders were observed in the K-ANX compared to the BAI and GAD-7. Conclusion The K-ANX is a reliable and valid measure to screen anxiety disorders in a Korean sample, with greater sensitivity and specificity than current measures of anxiety symptoms.

• 한국의류학회지
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• 제26권1호
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• pp.95-103
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• 2002

The consumption in the clothing's living has been diversified and rich by the increase in pay, the ostentatious propensity to consume and the diversification of distribution on structure in accordance with the advance of clothing industries, etc. The clothing, however, was not used properly due to the thoughtless purchase, the sudden change of fashion and the difficulty in the use and management of clothing. Most rural communities, furthermore, have the poor market, and the unreasonable management could be often observed, e.g., some people don't follow the care label or burn the clothing to waste. This study was conducted to provide the tool measuring the standardized clothing management behaviors so that the systematic and effective instruction could be achieved to improve the living standards 623 rural and urban housewives to develop the tool measuring the standardized clothing management to compare and measure the effect of before and after the education and guide all the way. And then, we developed the standardized measurement tool consisting of 6 parts of 60 questions after analyzing the validation and reliability of the questions. As a result of analyzing the validation and reliability of the developed tool, each Conbach alpha value of clothing living showed the good reliability; the value of the purchase plan was 0.76, the purchase was 0.83, the wear was 0.80, the management was 0.84, the storage was 0.83, and the disposal was 0.74, which indicated that it was able to use as a standardized tool.

• 한국철도학회논문집
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• 제20권2호
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• pp.196-202
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• 2017

초고속열차 추진용 실모델 선형동기전동기(Linear Synchronous Motor, LSM)의 고속운전시험을 위해서는 매우 긴 노선이 필요하고, 이로 인해 막대한 비용이 요구되며, 개발 도중 시행오차가 발생할 경우 경제적 손실이 크게 발생할 우려가 있다. 따라서 저 비용의 축소모델을 이용한 LSM 설계 기술의 타당성 검증 연구가 개발 초기 단계에 이루어져야 한다. 회전형 구조를 갖는 LSM 축소모델을 적용한 성능시험기를 통하여 LSM의 지상전기자 권선의 최적방식 도출 및 기기적 특성 파악이 가능하며, 제어시스템의 선행연구 수행에 활용이 가능하다. 따라서 본 논문에서는 600km/h급 초고속열차 추진용 LSM의 요구사양에 부합하는 회전형 시험기의 설계 모델을 도출하고, 전자계 해석 및 기구적 강성 해석을 통하여 1500rpm 이상의 고속 회전 조건에서의 최적 모델을 도출하였다.

• 한국지형학회지
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• 제27권2호
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• pp.65-80
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• 2020

This paper deals with risk assessment of life in a landslide-prone area by a GIS-based modeling method. Landslide susceptibility maps can provide a probability of landslide prone areas to mitigate or proper control this problems and to take any development plan and disaster management. A landslide inventory map of the study area was prepared based on past historical information and aerial photography analysis. A total of 550 landslides have been counted at the whole study area. The extracted landslides were randomly selected and divided into two different groups, 50% of the landslides were used for model calibration and the other were used for validation purpose. Eleven causative factors (continuous and thematic) such as slope, aspect, curvature, topographic wetness index, elevation, forest type, forest crown density, geology, land-use, soil drainage, and soil texture were used in hazard analysis. The correlation between landslides and these factors, pixels were divided into several classes and frequency ratio was also extracted. Eventually, a landslide susceptibility map was constructed using a logistic regression model based on entire events. Moreover, the landslide susceptibility map was plotted with a receiver operating characteristic (ROC) curve and calculated the area under the curve (AUC) and tried to extract a success rate curve. Based on the results, logistic regression produced an 85.18% accuracy, so we believed that the model was reliable and acceptable for the landslide susceptibility analysis on the study area. In addition, for risk assessment, vulnerability scale were added for social thematic data layer. The study area predictive landslide affected pixels 2,000 and 5,000 were also calculated for making a probability table. In final calculation, the 2,000 predictive landslide affected pixels were assumed to run. The total population causalities were estimated as 7.75 person that was relatively close to the actual number published in Korean Annual Disaster Report, 2006.