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Science China(Technological Sciences) 2010年第2期53卷 480-485页

作者： HOU XueLiang1 , LU Mei2 & WANG Kai3 1 School of Business Administration, North China Electric Power University, Beijing 102206, China 2 Department of Construction Management, Tsinghua University, Beijing 100084, China 3 College of Management, Beijing Jiaotong University, Beijing 100084, China School of Business Administration North China Electric Power University Beijing China Department of Construction Management Tsinghua University Beijing China College of Management Beijing Jiaotong University Beijing China

The co-adaptability theoretical solution to conflicting events in construction engineering projects has three problems. First, the transformation of constraint conditions of theoretical solution is very difficult in practical engineering applications; second, some coefficients are difficult to be determined; third, there are overfull circular arithmetic operations involved in it. To resolve these problems, a new method to reduce the theoretical solution complications is proposed. By analyzing the operating mechanism of theoretical solution model, redundancies in the theoretical solution can be eliminated, and the ISM mapping with the co-adaptability solution can be set up. Based on this approach, a procedure to solve practical conflicting events in construction projects is established by replacing characteristic variables with mathematic variables. The research results show that the procedure can replace the co-adaptability theoretical solution effectively and solve practical conflicting events in construction projects.

关键词： construction project conflict theoretical solution reduced analysis ISM confirmatory research

confirmatory Methods, or Huge Samples, Are Required to Obtain Power for the Evaluation of Theories

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Open Journal of Statistics 2014年第9期4卷 710-725页

作者： Irene Klugkist Laura Post Freek Haarhuis Floryt van Wesel Department of Methodology and Statistics Faculty of Social and Behavioural Sciences Utrecht University Utrecht The Netherlands Department of Educational Neuroscience Faculty of Psychology and Education VU University Amsterdam Amsterdam The Netherlands Department of Methodology Faculty of Psychology and Education VU University Amsterdam Amsterdam The Netherlands

Experimental studies are usually designed with specific expectations about the results in mind. However, most researchers apply some form of omnibus test to test for any differences, with follow up tests like pairwise comparisons or simple effects analyses for further investigation of the effects. The power to find full support for the theory with such an exploratory approach which is usually based on multiple testing is, however, rather disappointing. With the simulations in this paper we showed that many of the common choices in hypothesis testing led to a severely underpowered form of theory evaluation. Furthermore, some less commonly used approaches were presented and a comparison of results in terms of power to find support for the theory was made. We concluded that confirmatory methods are required in the context of theory evaluation and that the scientific literature would benefit from a clearer distinction between confirmatory and exploratory findings. Also, we emphasis the importance of reporting all tests, significant or not, including the appropriate sample statistics like means and standard deviations. Another recommendation is related to the fact that researchers, when they discuss the conclusions of their own study, seem to underestimate the role of sampling variability. The execution of more replication studies in combination with proper reporting of all results provides insight in between study variability and the amount of chance findings.

关键词： confirmatory Research Exploratory Research Power Theory Evaluation

confirmatory Factor Analysis of the Youth Experiences Survey for Sport (YES-S)

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Open Journal of Statistics 2015年第5期5卷 421-429页

作者： Philip J. Sullivan Kaitlyn LaForge-MacKenzie Matthew Marini Department of Kinesiology Brock University St. Catharines Canada

Research on Positive Youth Development (PYD) has been hampered by lack of a valid measure for the construct, particularly for research in sport. The Youth Experiences Scale for Sport (YES-S) [1], is a five-factor measure of positive youth outcomes specifically designed for the sport context. The YES-S is a promising instrument that fills an important niche in PYD research, and MacDonald et al. provided support for many of its psychometric properties. However, the factor structure of the scale is currently based on an exploratory factor analysis and has not yet been subjected to a confirmatory factor analysis (CFA). The present study was designed to confirm the five-factor structure of the YES-S. A sample of 350 youth sport athletes (196 male, 153 female) completed the YES-S. A CFA showed that a modified version of the five-factor YES-S had excellent fit of the model to the data. An analysis of invariance showed no differences in responses in terms of gender. It is concluded that this short-form YES-S offers excellent psychometric properties while retaining the original factor structure of the YES-S. The results offer further support for the validity of the factor structure of the YES-S while providing a shorter version of the scale, which may be appealing for research with younger sport participants.

关键词： Positive Youth Development Sport confirmatory Factor Analysis

Exploratory and confirmatory Factor Analyses for Testing Validity and Reliability of the Malay Language Questionnaire for Urinary Incontinence Diagnosis (QUID)

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Open Journal of Preventive Medicine 2014年第11期4卷 844-851页

作者： Hardip Kaur Dhillon Md. Zain Anuar Zaini Kia Fatt Quek Harbindar Jeet Singh Gurpreet Kaur Bin Nordin Rusli Jeffrey Cheah School of Medicine & Health Sciences Monash University Malaysia Bandar Sunway Malaysia Faculty of Medicine Universiti Teknologi MARA Sungai Buloh Malaysia National Institutes of Health Institute for Health Management Kuala Lumpur Malaysia Jeffrey Cheah School of Medicine & Health Sciences Clinical School Johor Bahru Monash University Malaysia Johor Bahru Malaysia

This study examines the construct validity and reliability of the Malay language questionnaire for urinary incontinence diagnosis (QUID) in women. Study Design: Random sampling design was used in this cross-sectional survey. Materials and Methods: The Americanized English language questionnaire was translated to the Malay language and distributed to community-dwelling Malaysian women living in various locations in Selangor. The construct validity was tested using exploratory factor analysis (EFA) followed by confirmatory factor analysis (CFA). The reliability was determined using Cronbach’s α. Results: A total of 111 women completed the Malay language QUID in this pilot study. The Keiser-Meyer-Olkin (KMO) measure of sampling adequacy of 0.675 and Bartlett’s test of sphericity (χ2 = 284.633, df = 15, p = 0.001) indicated that the EFA was possible. The total variance and the scree plot identified two factors above the initial eigenvalue of 1 while a third factor was just below it (0.758). The CFA output showed a recursive model with the solution being not admissible because two unobserved and exogenous variables had negative variance estimates. The following values of absolute fit indices showed an acceptable level of fit: 1) Chi-square test with χ2 = 4.997, df = 5, p = 0.416, indicated a smaller difference between the expected and observed covariance matrices;2) GFI = 0.986, AGFI = 0.939, RMR = 0.021 and CMIN/DF = 1.0 indicated acceptable level of fit;3) The baseline comparison values of NFI = 0.983 and CFI = 1.0 also indicated a good fit to the data;4) RMSEA = 0.000 was considered a perfect fit indicating that the hypothesized model was a good fit to the observed data. Under the hypothesis of “close fit”, the probability of getting a sample RMSEA as large as 0.000 was 0.567. The Cronbach’s α coefficient of 0.823 indicated good reliability. Conclusion: The Malay language QUID is a valid and reliable instrument for diagnosing female urinary incontinence in the Malaysian population.

关键词： confirmatory Factor Analysis Exploratory Factor Analysis Malay Language Questionnaire for Urinary Incontinence Diagnosis Reliability

Monitoring stress and recovery states: Structural and external stages of the short version of the RESTQ sport in elite swimmers before championships

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Journal of Sport and Health Science 2019年第1期8卷 77-88页

作者： Michel Nicolas Philippe Vacher Guillaume Martinent Laurent Mourot Laboratory of Socio Psychology and Management of Sport (SPMS EA 4180) University of Burgundy Laboratory of Vulnerabilities and Innovation in Sport (L-ViS EA 7428) Univ Lyon University of Claude Bernard Lyon 1 University of Franche Comt-Prognostic Markers and Regulatory Factors of Heart and Vascular Diseases and Exercise Performance Health Innovation Platform

Background: Psychological stress and recovery monitoring is a key issue for increasing athletes' health, well-being, and performance. This multistudy report examined changes and the doseàresponse relationships between recoveryàstress psychological states, training load(TL), heart rate(HR), heart rate recovery(HRR), and heart rate variability(HRV) while providing evidence for the factorial validity of a short French version of the RecoveryàStress Questionnaire for Athletes(RESTQ-36-R-Sport).Methods: Four hundred and seventy-three university athletes(Study 1), 72 full expert swimmers(Study 2), and 11 national to international swimmers(Study 3) participated in the study. Data were analyzed through confirmatory factor analyses(Study 1), repeated ANOVAs and correlational analyses(Study 2), t tests and correlational analyses(Study 3).Results: Multiple-group confirmatory factor analyses showed that the RESTQ-36-R-Sport scores were partially invariant across gender, type of sport, and practice level(Study 1). A doseàresponse relationship was performed between TL and RESTQ-36-R-Sport scores during an ecological training program(Study 2). Finally, relationships were found between physiological(HRR) and psychological(RESTQ-36-R-Sport) states during an ecological tapering period leading to a national championship(Study 3).Conclusion: As a whole, these findings provided evidence for the usefulness of the short version of the RESTQ-36-R-Sport for regular monitoring to prevent potential maladaptation due to intensive competitive sport practice.

关键词： Adaptation confirmatory factor analysis Heart rate variability Monitoring Recovery Stress

New approaches to cognitive work analysis through latent variable modeling in mining operations

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International Journal of Mining Science and Technology 2019年第4期29卷 549-556页

作者： S.Li Y.A.Sari M.Kumral Department of Mining and Materials Engineering McGill University

This paper discusses the utilization of latent variable modeling related to occupational health and safety in the mining industry.Latent variable modeling,which is a statistical model that relates observable and latent variables,could be used to facilitate researchers’understandings of the underlying constructs or hypothetical factors and their magnitude of effect that constitute a complex system.This enhanced understanding,in turn,can help emphasize the important factors to improve mine safety.The most commonly used techniques include the exploratory factor analysis(EFA),the confirmatory factor analysis(CFA)and the structural equation model with latent variables(SEM).A critical comparison of the three techniques regarding mine safety is provided.Possible applications of latent variable modeling in mining engineering are explored.In this scope,relevant research papers were reviewed.They suggest that the application of such methods could prove useful in mine accident and safety research.Application of latent variables analysis in cognitive work analysis was proposed to improve the understanding of human-work relationships in mining operations.

关键词： Latent variables Exploratory factor analysis confirmatory factor analysis Structural equation modeling Occupational health and safety Mine safety

New advances in the diagnosis of primary aldosteronism

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Chronic Diseases and Translational Medicine 2020年第1期6卷 1-5页

作者： Shen Hang Xu Zhi-Xin Li Qi-Fu Department of Endocrinology The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China

Primary aldosteronism (PA) is a common form of endocrine hypertension. The diagnostic process of PA includes a screening test, confirmatory test, and subtype classification. In this review, we have summarized the latest advances in the diagnosis of PA with regard to screening and confirmatory tests and provided some recommendations to improve clinical practice.

关键词： Primary aldosteronism Screening test confirmatory test

Italian Psychometric Validation of the Multidimensional Students’ Health-Promoting Lifestyle Profile Scale

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Health 2018年第11期10卷 1554-1575页

作者： Giulia Savarese Luna Carpinelli Pierpaolo Cavallo Maria Prosperina Vitale Department of Medicine and Surgery University of Salerno via Allende Baronissi (Sa) Italy Department of Phisic University of Salerno via Giovanni Paolo II n. 132 Fisciano (Sa) Italy Department of Economics and Statistics University of Salerno via Giovanni Paolo II n. 132 Fisciano (Sa) Italy

The present study examines the factorial structure and assesses the psychometric properties of the adapted multidimensional Health-Promoting Lifestyle Profile II Scale, considering a sample of Italian university students who participated to an online survey. The original 52-items Scale showed a high overall internal consistency. Four of the six subscales were associated with good values of the Cronbach’s α coefficient, whereas two subscales had lower values. Hence corrected item-total correlation was calculated and 26 items that decreased the scale’s reliability were deleted. The remaining 26 items were first subjected to Principal Component Analysis that suggested a conceptually meaningful five-factor model. This result was further supported by the first-order confirmatory factor analysis, in which all the factor loadings were statistically significant. The internal consistency and the composite reliability for the reduced version of the Scale and its subscales have shown a good reliability for the measurement models. The multidimensionality of the scale was also confirmed by a second-order factor model.

关键词： Scale Reliability and Validity confirmatory Factor Analysis Health Promotion and Quality of Life University Students

Knowledge Discovery from Dynamic Data on a Nonlinear System

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Open Journal of Applied Sciences 2015年第10期5卷 576-585页

作者： Chen-Sung Chang Department of Information Management Nan-Kai University of Technology Taiwan

A method is presented for performing knowledge discovery on the dynamic data of a nonlinear system. In the proposed approach, a synchronized phasor measurement technique is used to acquire the dynamic data of the nonlinear system and a hyper-rectangular type neural network (HRTNN) is then applied to extract crisp and fuzzy rules with which to estimate the system stability. The effectiveness of the proposed methodology is verified using the dynamic data of a typical real-world nonlinear system, namely an AEP-14 bus, and the extracted rules are relating to the knowledge discovery of the stability levels for the nonlinear system. The discovered relationships among the dynamic data (i.e., the operating state), the extracted rules, and the system stability are confirmed by means of a two-stage confirmatory factor analysis.

关键词： Knowledge Discovery Synchronized Phasor Measurement Hyper-Rectangular Type Neural Network (HRTNN) Structural Equation Modeling (SEM) confirmatory Factor Analysis

Validity and Reliability of the Japanese Version of the Fertility Quality of Life (FertiQoL) Tool for Couples Undergoing Fertility Treatment

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Open Journal of Nursing 2018年第9期8卷 616-628页

作者： Kyoko Asazawa Mina Jitsuzaki Akiko Mori Tomohiko Ichikawa Katsuko Shinozaki Atsumi Yoshida Masami Kawanami Hiroshi Kamiyama Department of Nursing Tokyo Healthcare University Tokyo Japan Department of Nursing University of Occupational and Environmental Health Fukuoka Japan Women’s Health and Midwifery Graduate School St. Luke’s International University Tokyo Japan Graduate School of Medicine Chiba University Chiba Japan Graduate School of Health and Welfare Science International University of Health and Welfare Fukuoka Japan The Reproduction Center Kiba Park Clinic Tokyo Japan The Reproduction Center Shibakoen Kamiyama Clinic Tokyo Japan

Background: FertiQoL, which measures the Quality of Life (QOL) of reproductive partners, has been translated and used in 45 languages in the world. The reliability and validity of the original English version of FertiQoL have been confirmed. However, there is still no report on the reliability and validity of the Japanese version by a large-scale survey. This study aimed to examine the reliability and validity of the Japanese version of the FertiQoL scale for measuring the QOL of patients with reproductive problems. Methods: An unsigned self-filled questionnaire survey was conducted in patients undergoing infertility treatment at seven facilities in the Kanto area in Japan using the 34 items of the Japanese version of the FertiQoL scale. The study design was quantitative cross-sectional descriptive research. The investigation period was from April 2013 to April 2018. The contents of the investigation were attributes, FertiQoL scale, and distress scale. To determine the construct validity, principal component analysis, confirmatory factor analysis, and correlation analysis for each subscale were performed using SPSS Statistics Ver. 23.0 and AMOS Ver. 23.0. The study was performed after obtaining approval from the Research Ethics Review Committee of the responsible institutions to which the researchers belong as an ethical consideration. Results: The participants included 1201 patients undergoing infertility treatment and who provided valid responses. The Cronbach’s α was 0.92, and confirmatory factor analysis identified six domains with 34 items that showed the following values: goodness of fit index = 0.877, adjusted goodness of fit index = 0.855, comparative fit index = 0.893, and root mean square error of approximation = 0.059. The correlation coefficient was 0.669 (p Conclusions: The Japanese version of FertiQoL showed adequate reliability and validity for assessing the QOL of patients with reproductive problems in Japan.

关键词： Infertility QOL confirmatory Factor Analysis Reliability Validity