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KMID : 0371019960290020255
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Journal of Preventive Medicine and Public Health
1996 Volume.29 No. 2 p.255 ~ p.264
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Reliability and Validity of PWI(Psychosocial Wellbeing Index)
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Lee Chae-Yong
Lee Jong-Young
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Abstract
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To study reliability and validity of PWI, this newly developed self-administered questionnaire which measures stress, was given to medical students. All respondent(133) were followed 4 weeks later and 92 were retested.
Cronbach´s alpha coefficient of data was 0.93. Test-retest reliability measured by Pearson´s correlation coefficient was 0.72(P< 0.01)
Exploratory factor analysis(EFA) performed by principal axis factor method without iteration and by varimax rotation explored 13 principal components(eigenvalues > 1). After exploring 4 factor structure according to previous study results, factor 1 showed good agreement but other factors did not. Confirmatory factor analysis(CFA) showed poor fit of 4 factor model to data. In the further study, it may be considered to model that has unidimensional factor structure.
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KEYWORD
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PWI, stress, reliability, exploratory factor analysis, confirmatory factory analysis
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