• 융합정보논문지
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• 제8권4호
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• pp.99-108
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• 2018

이 연구는 승마참여자들의 향유하기, 정서 및 행복감연구로서 주요 모집단은 232명의 승마에 참여하고 있는 여가스포츠 참여자들이다. 본 연구의 주요 결과를 도출하기 위하여 첫째, 주요 변수의 요인 추출 및 타당도 검증을 위해 탐색적 요인분석, 그 결과를 바탕으로 확인적 요인분석을 실시하였다. 둘째, 주요 변수 간의 상관을 알아보기 위하여 상관관계 분석을 실시하였으며, 셋째, 본 연구의 최종 결과를 도출하기 위하여 경로분석을 수행하였다. 이외에 주요 측정도구에 대한 신뢰도 분석을 실시하여 내적 일치도(Conbach's ${\alpha}$)를 알아보았다. 이상의 분석은 IBM SPSS 21.0 프로그램과 IBM AMOS 21.0 프로그램을 활용하였다. 이 연구는 승마참여자들의 향유하기와 정서, 그리고 행복감의 인과적 관계를 살펴보았으며, 주요 결과는 다음과 같다. 첫째, 승마참여자들의 향유하기가 정서에 미치는 영향을 살펴본 결과, 과거회상은 부정적 정서에 통계적으로 유의한 부적 영향을 미쳤고, 미래기대는 긍정적 정서에 통계적으로 유의한 부적 영향을 미치는 것으로 나타났다. 둘째, 승마참여자들의 향유하기가 행복감에 미치는 영향을 살펴본 결과, 미래기대는 행복감에 통계적으로 유의한 정적 영향을 미치는 것으로 나타났다. 셋째, 승마참여자들의 정서가 행복감에 미치는 영향을 살펴본 결과, 긍정적 정서는 행복감에 통계적으로 유의한 정적 영향을 미치는 것으로 나타났다.

• Journal of Advanced Marine Engineering and Technology
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• 제40권8호
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• pp.726-732
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• 2016

Clustering analysis is widely used in data mining to classify data into categories on the basis of their similarity. Through the decades, many clustering techniques have been developed, including hierarchical and non-hierarchical algorithms. In gene profiling problems, because of the large number of genes and the complexity of biological networks, dimensionality reduction techniques are critical exploratory tools for clustering analysis of gene expression data. Recently, clustering analysis of applying dimensionality reduction techniques was also proposed. PCA (principal component analysis) is a popular methd of dimensionality reduction techniques for clustering problems. However, previous studies analyzed the performance of PCA for only full data sets. In this paper, to specifically and robustly evaluate the performance of PCA for clustering analysis, we exploit an improved FCBF (fast correlation-based filter) of feature selection methods for supervised clustering data sets, and employ two well-known clustering algorithms: k-means and k-medoids. Computational results from supervised data sets show that the performance of PCA is very poor for large-scale features.

• 유통과학연구
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• 제11권11호
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• pp.49-55
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• 2013

Purpose - This study examined the effects of susceptibility to global consumer culture (SGCC) on the brand attitude of consumers of the global SPA brand in South Korea. Research Design, Data, and Methodology -Questionnaires were used, and the sample that was extracted by the convenience sampling method comprised 703 males and females, aged 20-36. The data were analyzed with SPSS 16.0 and Amos 5.0 for frequency analysis, exploratory factor analysis, confirmatory factor analysis, reliability analysis, correlation analysis, and structural equation modeling analysis. Results - First, conformity to consumption trends was found to have a significant effect on all four variables of SPA brand attitude (brand favorability, uniqueness, ethicality, and economic utility). Second, quality perception was found to have a significant effect on brand favorability, uniqueness, ethicality, and economic utility. Third, social prestige was found to have a positive effect on uniqueness. Conclusions - The results show that consumers' susceptibility to global culture is a significant factor in their attitude to the global SPA brand. Therefore, it would be more effective if the global SPA brand develops recognition among consumers that its products play a role in sharing new trends and global lifestyles.

• 디지털융복합연구
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• 제14권3호
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• pp.465-471
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• 2016

본 연구는 대학 운동선수들의 인지된 자율성 인식과 성취동기간의 관계를 규명하기 위해 수행되었다. 서울 및 수도권에 재학 중인 운동선수들을 대상으로 25개 종목의 396명의 유효표본을 얻었으며, SPSS 18 프로그램과 AMOS 프로그램을 이용하여 기술통계, 탐색적 요인분석, 확인적 요인분석, 신뢰도 분석을 통하여 데이터를 정화하였고 이를 바탕으로 상관관계분석과 회귀분석을 통하여 자율성과 성취동기와의 관계를 검증하였다. 이러한 절차를 통한 결과는 자율성 인지에 있어서 남학생이 여학생보다 높게 인식하고 있었으며, 회귀분석결과 자율성 인지는 숙달접근과 수행접근의 접근 성향의 성취목표에 영향을 주는 것으로 나타났다.

• International journal of advanced smart convergence
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• 제10권3호
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• pp.172-180
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• 2021

The purpose of this study is to analyze the structural relationship among perfectionism and dance achievement of middle and high school students majoring in dance. Specifically, this study aims to investigate the effects of perfectionism on dance achievement through the medium of dance commitment and career decision-making self-efficacy. For this purpose, a structural equation model based on the previous studies was constructed with perfectionism as an exogenous variable and dance commitment, career decision-making self-efficacy, and dance achievement as endogenous variables. The final subjects of this study were 279 middle and high school students majoring in dance. The data were processed by frequency analysis to find out personal characteristics using SPSS 23 and exploratory factor analysis and reliability analysis were conducted on the research tools. In addition, AMOS 21 was used for confirmatory factor analysis, correlation analysis and structural equation model analysis. As a result of data processing on the research model. First, the sub-dimensions of perfectionism tendency 'worry about mistakes', 'personal standard', and 'doubt about behavior' had a statistically significant effect on dance commitment. Second, the sub-dimensions of perfectionism 'worry about mistakes', 'personal standard', and 'doubt about behavior' had statistically significant effects on career decision-making self-efficacy. Third, dance commitment did not have a statistically significant effect on dance achievement, but career decision-making self-efficacy had a statistically significant effect on dance achievement. These results provide implications.

• Asian Pacific Journal of Cancer Prevention
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• 제15권11호
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• pp.4595-4599
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• 2014

Background: Colorectal cancer is a serious health problem. Early detection of colorectal cancer is crucial for treatment and reducing mortality. Beliefs related to colorectal cancer have been found to be a factor in a person's decision about colorectal cancer screening programs. To determine such beliefs, a valid and reliable instrument is necessary. Objective:The aim of this study was to adapt and determine the psychometric properties of the Persian version of Champion's Health Belief Model Scale of breast cancer screening in the measurement of beliefs toward colorectal cancer (CRC) screening. Materials and Methods: The 'forward-backward' procedure was applied to translate the instrument from English into Persian. This study was conducted in Iran from June 2012 to May 2013. A convenience sample of 200 individuals aged 50 years and older was recruited from the population at the outpatient clinics in the three teaching hospitals. Validity was assessed using content, face and construct validity. To test reliability, the internal consistency was assessed by using Cronbach's alpha coefficient and test-retest (intraclass correlation coefficient) analyses. Exploratory factor analysis was used to assess the construct validity and determine the factors of adapted Champion's Health Belief Model Scale. Results: The mean age of the participants were 62.5 years (SD=10.8 years) and the majority of them (75.5 percent) were female. The results of exploratory factor analysis indicated a six-factor solution for the questionnaire (benefits, motivation and confidence, seriousness, susceptibility, emotional barriers and background barriers) that jointly accounted for 55.52% of variance observed. Cronbach's alpha of the subscales ranged from 0.57 to 0.89 and test-retest reliability ranged from 0.81 to 0.93 indicating a good range of reliability. Conclusions: The findings of this study suggest that the Persian version of Champion's Health Belief Model Scale of CRC screening has good psychometric properties and could be an appropriate measure for health beliefs related to CRC screening in national and international studies.

• 한국간호교육학회지
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• 제22권4호
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• pp.549-558
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• 2016

Purpose: The purpose of this study was to develop and validate a Nursing Competency Scale in Simulation (NCSS) for nursing students. Methods: A preliminary version of the NCSS of 14 items was derived from the literature. A panel of seven experts reviewed the preliminary version for content validation and developed 15 items scale. A convenient sample of 195 nursing students completed the survey and two evaluators measured the performances of nine teams in a simulation scenario with NCSS. The data were analyzed using exploratory factor analysis, descriptive statistics, independent t-test and Cronbach's alpha. Intraclass correlation coefficient (ICC) was used in order to estimate the degree of inter-rater reliability. Results: An exploratory factor analysis demonstrated that two factor structures of the NCSS explained 51.1% of the total variance. Two factors were named psychosocial skills and cognitive and psychomotor skills. The mean scores of NCSS between third and 4th grade were significantly different providing support for its known-group validity. Cronbach's alpha was .90 and ranged from .79 to .88. The overall ICC for inter-rater agreement was 0.89 (95% CI 0.03 to 0.98). Conclusion: This scale shows preliminary evidence for validity and reliability. It could be a useful instrument for measuring learning outcome in simulation for nursing students' clinical competency.

• Asian Pacific Journal of Cancer Prevention
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• 제17권9호
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• pp.4341-4347
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• 2016

Background: Patient safety is one of the key components of nursing care for cancer cases. Valid and reliable context-based instruments are necessary for accurate evaluation of patient safety in oncology units. The aim of the present study was to develop and evaluate the psychometric properties of the Patient Safety Violation Scale in medical oncology units in Iran. Materials and Methods: In this methodological study, a pool of 58 items was generated through reviewing the existing literature. The validity of the 58-item scale was assessed through calculating impact score, content validity ratio, and content validity index for its items as well as conducting exploratory factor analysis. The reliability of the scale was evaluated by assessing its internal consistency and testretest stability. Study sample consisted of 300 oncology nurses who were recruited from thirteen teaching hospitals affiliated to Tehran University of Medical Sciences, Tehran, Iran. Results: Sixteen items were excluded from the scale due to having low impact scores, content validity ratios, or content validity indices. In exploratory factor analysis, the remaining 42 items were loaded on five factors including patient fall, verification of patientidentity, harm during care delivery, delay in care delivery, and medication errors. These five factors explained 62% of the total variance. The Cronbach's alpha of the scale and the test-retest interclass correlation coefficient were equal to 0.933 and 0.92, respectively. Conclusions: The 42-item Patient Safety Violation Scale is a simple and short scale which has acceptable validity and reliability. Consequently, it can be used for assessing patient safety in clinical settings such as medical oncology units and for research projects.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 추계학술대회
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• pp.514-517
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• 2017

태양광 발전 시스템에서 전력 생산은 기상 상태에 따라 크게 영향을 받으므로 안정적인 부하 운용을 위해 태양광 에너지에 대한 예측이 필수적이다. 따라서 태양광 에너지 예측을 위한 기계학습 알고리즘의 입력으로 기상 상태에 대한 데이터가 필요하다. 본 논문에서는 알고리즘에 대한 입력 데이터로 표면의 3시간 동안 누적된 강수량, 상 하향 장파 복사선 평균, 상 하향 단파 복사선 평균, 지상 2m에서의 3시간 동안 온도, 표면에서의 온도 등 15가지 종류의 기상 데이터를 사용한다. 기상 데이터의 통계적 특성을 파악하고 상관관계를 분석하여 태양광 에너지와 70% 이상의 높은 상관성을 갖는 하향 단파 복사선 평균과 상향 단파 복사선 평균을 특징벡터의 주요 원소로 추출하였다.

• 대한불안의학회지
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• 제14권2호
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• pp.127-134
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• 2018

Objective : The aim of this study was to examine the psychometric features of the Korean version of the Eating Disorder Diagnostic Scale-the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (K-EDDS DSM-5). Methods : A total of 72 patients diagnosed with eating disorders participated in the study. The diagnosis was based on the Korean version of the Eating Disorder Examination (KEDE) interview. All participants completed the K-EDDS and the Eating Disorder Examination Questionnaire version 6.0 (EDE-Q 6.0) for this study. The psychometric features of the K-EDDS were examined using exploratory factor analysis, convergent validity of agreement between the K-EDDS and the KEDE, and internal consistency. Results : The exploratory factor analysis initially extracted 6-factor structures which were reconstructed into 4 factors of body dissatisfaction, binge behavior, binge frequency, and compensatory behavior based on appropriateness of the items. The internal consistency of the K-EDDS was fairly acceptable (Cronbach's alpha=0.72). The diagnostic agreement between the K-EDDS and the KEDE was high (98.61%). The 4 factors of the K-EDDS showed significant correlation with the 4 subscales of the EDE-Q 6.0. Conclusion : Our data suggests that the K-EDDS is a reliable and valid tool for the diagnosis of eating disorders based on the DSM-5.