• Title, Summary, Keyword: Confirmatory Factor Analysis

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A Study of Validity in Tripartite Model of "Attitudes towards Science" using Exploratory and Confirmatory Factor Analyses (탐색적 확인적 요인 분석을 통한 "과학에 대한 태도" 3요소 모델의 타당도 연구)

  • Lee, Kyung-Hoon
    • Journal of The Korean Association For Science Education
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    • v.17 no.4
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    • pp.481-492
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    • 1997
  • The purpose of this study is to construct validity of Tripartite model of "Attitudes towards Science" using Exploratory and Confirmatory Factor Analyses. Exploratory and confirmatory factor analyses are two major approaches to factor analysis. The primary goal of factor analysis is to explain the covariances or correlations between many observed variables by means of relatively few underlying latent variables. In exploratory factor analysis, the number of latent variables is not determined before the analysis, all latent variables typically influence all observed variables, the measurement errors(${\delta}$) are not allowed to correlate, and unidentification of parameters is common. Confirmatory factor analysis requires a detailed and identified initial model. Confirmatory factor analysis techniques allow relations between latent and observed variables that are not possible with traditional, exploratory factor analysis techniques. As a result of exploratory factor analysis, tripartite model of "Attitudes towards Science" being composed of affection, behavioral intention and cognition is empirically identified. But attitude of science career being composed of affection and behavioral intention is identified. In validity test using confirmatory factor analysis, measurement structure of Tripartite model of "Attitudes towards Science" is not correspondent to data set. Because it is concluded that the object of attitudes are not specific.

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Exploratory & Confirmatory Factor Analysis for Developing a Good Secondary School Scale based on the Factors of the Effective Schooling (효과적인 학교교육요소에 근거한 좋은 중등학교 척도개발을 위한 탐색적 확인적 요인분석)

  • Jung, Soon-Mo;Baek, Hyeon-Gi
    • Journal of Digital Convergence
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    • v.6 no.2
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    • pp.41-53
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    • 2008
  • This research is to redefine the concept of Good School and to validate an effective Good Secondary School Scale in Kyung-gi Province and Seoul. As statistical methods, SPSS 13.0 and AMOS 5.0 were used. Item Analysis and Exploratory Factor Analysis(EFA) were conducted to test the reliability of items and the factor structure. And Confirmatory Factor Analysis(CFA) was conducted to test the validity and fitness of the Good School Scale. The outcomes are as follows: First, six factors(school environment, curriculum, teacher, school-based management system, director) will increase the good schooling effectiveness. Second, As a result of Confirmatory Factor Analysis(CFA), the goodness of fit indices(GFI AGFI, CFI, RMSEA) demonstrate statistically significance and fitness of the model. The final Good School Scale supports 6 Good School Factors obtained in main test. Therefore, we can say that this scale can be used as a valid instrument to measure a real Good Schooling Effectiveness at the secondary school situation in Korea.

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Confirmatory Factor Analysis of the Environmental Health Engagement Profile (환경적 건강 관여 측정도구의 확인적 요인 분석)

  • Kim, Hyun-Kyoung
    • Korean Parent-Child Health Journal
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    • v.17 no.1
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    • pp.37-45
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    • 2014
  • Purpose: This study aimed to review measurements of environmental health behavior and assess the construct validity of Environmental Health Engagement Profile (EHEP) through confirmatory factor analysis. Methods: The literature review was performed for selection of measurements. Confirmatory factor analysis with AMOS 19.0 was used for validation of EHEP. Results: The model fitness was not appropriate in the one-factor model; $x^2=91.11$ (df=5, p<.001), Comparative Fit Index (CFI)=8.19, Non Normed Fit Index (NNFI)=6.39, and Root Mean Square Error of Approximation (RMSEA)=0.20. The model fitness was appropriate in the two-factor model; $x^2=3.19$ (df=1, p=.074), CFI=9.95, NNFI= 9.71, RMSEA=0.07. A modification of scale was found to be the most suitable for use in the investigation of environmental health behavior. Conclusion: This study confirms that a two-factor model underlies the concept of environmental health behavior. The review of measurements can help nurses and researchers to assess the environmental health behaviors.

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Exploratory and Confirmatory Factor Analysis of the Korean version of the Penn State Worry Questionnaire (한글판 펜실베니아 걱정 질문지의 탐색적 및 확인적 요인 분석)

  • Jeon, Jun Won;Kim, Daeho;Kim, Eunkyung;Roh, Sungwon
    • Anxiety and mood
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    • v.13 no.2
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    • pp.86-92
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    • 2017
  • Objective : This study evaluated the factor structure of a Korean version of the Penn State Worry Questionnaire (K-PSWQ) with exploratory factor analysis in healthy adult subjects, and confirmatory factor analysis of subjects who have received psychiatric treatment. Methods : Exploratory principal component analysis was conducted with data from 318 non-psychiatric subjects, and 118 psychiatric patients were subjected to confirmatory factor analysis (maximum likelihood estimation). Participants were voluntary visitors at the booth who agreed to undergo screening for anxiety disorder at 2013 & 2014 Korea Mental Health Exhibitions. Results : Exploratory analysis revealed a two factor structure of the scale with total variance of 56.3%. Factor 1 was considered 'Worry engagement', and factor 2 was considered 'Absence of worry'. However, the results of the confirmatory factor analysis supported that both one factor model with method factor and two factor model are fit to structure of the scale considering fit indices. Internal consistency of total questions was good (Cronbach's ${\alpha}=0.899$). Conclusion : Our results supported the previously suggested factor structure of the PSWQ, and proved factorial validity of the K-PSWQ in both populations.

A Confirmatory Factor Analysis on the Performance Enhancement Attitude Scale-Korean version for Elite Athletes (확인적 요인분석을 통한 엘리트 선수들의 한국형 운동수행능력 향상에 대한 태도 척도에 관한 연구)

  • Park, Jaemyoung;Kim, Taegyu
    • Journal of Digital Convergence
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    • v.16 no.11
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    • pp.599-604
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    • 2018
  • This study aimed to examine the various factors structure of Performance Enhancement Attitude Scale (PEAS) by using confirmatory factor analysis and to provide a suitable questionnaire for elite athletes to measure attitudes toward doping. Three hundred and fifty-five handball players participated in this study and they filled out a self-administrated 17-items PEAS. And 17-items, 11-items, 9-items, 8-items and 6-items PEAS were examined by using confirmatory factor analysis, respectively. 6-items PEAS was suitable to measure attitudes toward doping for adult athletes, and PEAS for adolscent should be developed by being consisted of suitable questions for adolscent athletes.

A Study on the Structure of Intelligence Measured by the K-WPPSI-IV (한국 웩슬러 유아지능검사 4판(K-WPPSI-IV)의 지능구조에 관한 연구)

  • Lee, KyungOk;Park, Hyewon;Lee, Sanghee
    • Korean Journal of Child Studies
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    • v.37 no.6
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    • pp.107-117
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    • 2016
  • Objective: This study examined the construct validity of K-WPPSI-IV. Factor structures of the structures of the K-WPPSI-IV full scale as well as primary index scales for two age ranges (2 years, 6 months to 3 years, 11 months; 4 years to 7 years, 7 months) were examined. Methods: Data were collected from 1,700 children aged 2 years, 6 months to 7 years, 7 months during the K-WPPSI-IV standardization. Confirmatory factor analyses were conducted using the K-WPPSI-IV subtest performances with maximum likelihood estimation using Amos 18. Results: First, the three-factor model (verbal comprehension, visual spatial, and working memory) fitted best for the younger age range. However, the five-factor model (verbal comprehension, visual spatial, fluid reasoning, working memory, and processing speed) fitted best for the older age range. Residuals suggest the presence of two nested subfactors within the verbal comprehension factor (broad/expressive and focused/simple). Second, the confirmatory factor analysis on primary index subtests identified factors that account for the intercorrelations among the reduced sets of primary index subtests. Conclusion: The findings showed that the theoretical structures of WPPSI-IV subtests were confirmed within K-WPPSI-IV.

The Multidimensional Structure of Gottfredson and Hirschi's Concept of Self-Control: An Empirical Analysis of the Grasmick et al.'s Operationalization.

  • Lee, Gang;Hollinger, Richard C.
    • Survey Research
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    • v.11 no.2
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    • pp.123-140
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    • 2010
  • The purpose of this study is to determine the unidimensionality of Grasmick's operationalization of Gottfredson and Hirschi's criminality inducing the concept of low self-control. By applying confirmatory factor analysis procedures that incorporate advances in the application, the proposed six factor model and two alternative models were examined suggesting that Grasmick's low self-control scale actually contains 6 distinguishable factors, not a single factor. The factors identified to be consistent with the six-factor model were impulsivity, simple tasks, risk seeking, physical activities, self-centered, and temper.

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Accessing Factor Structure and Construct Validity of the Successful Aging Inventory (노인의 성공적 노화 측정도구에 대한 요인 구성타당도 평가)

  • Kim, Eun Joo
    • Journal of Korean Academy of Nursing
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    • v.43 no.4
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    • pp.568-578
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    • 2013
  • Purpose: The purpose of this study was to evaluate the reliability and validity of the Korean version of the Successful Aging Inventory (SAI-K) to determine its suitability for use with older Korean adults. Methods: Exploratory and confirmatory factor analyses were utilized to assess the factor structure and the construct validity of the SAI-K. First- and second-order Confirmatory Factor Analysis (CFA) were conducted to identify the most adequate model. Cronbach's alpha was used to test the reliability. Results: Using a second-order CFA, a four-factor structure was validated (${\chi}^2$=122.82, p<.001, GFI=.92, AGFI=.88, SRMR=.06 RMSEA=.07, 90% CI=.05-.09, CFI=.93). The four-factor SAI-K showed reliable internal consistency with a Cronbach's alpha for the total scale of .86. Conclusion: The four-factor, 13-item SAI-K showed satisfactory reliability and validity and, thus, has the potential to be an appropriate instrument for measuring successful aging in older Korean adults.

Personal Value Determinants of Fashion Orientation: Materialism and Consumer Conformity (패션성향에 영향을 미치는 개인가치 결정요인: 물질주의와 소비자 동조성을 중심으로)

  • 박혜정;전경숙
    • Journal of the Korean Society of Clothing and Textiles
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    • v.28 no.910
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    • pp.1243-1252
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    • 2004
  • The purpose of this study was to identify the impact of personal values on fashion orientation. As personal values, this study adopted materialism and consumer conformity. Data were gathered by surveying university students living in Seoul metropolitan area using convenient sampling, and 325 questionnaires were used in the statistical analysis. In analyzing data, confirmatory factor analysis and path analysis were conducted using structural equation modeling. Confirmatory factor analysis revealed that fashion orientation has three factors such as fashion leadership, fashion interest, and importance of being well dressed. Path analysis showed that centrality factor of materialism spurred all three factors of fashion orientation and that happiness factor of materialism gave rise to importance of being well dressed of fashion orientation. Informational conformity also significantly increased all three factors of fashion orientation.