TY - JOUR
T1 - Examining the hierarchical factor structure of the SF-36 Taiwan version by exploratory and confirmatory factor analysis
AU - Wu, Chia Huei
AU - Lee, Keng Lin
AU - Yao, Grace
PY - 2007/12
Y1 - 2007/12
N2 - Rationale: The purpose of this study was to examine the factor structure of the Medical Outcome Study Short Form-36 Taiwan version (SF-36 Taiwan version) using data from the 2001 National Health Interview Survey in Taiwan. Method: The 2001 National Health Interview Survey was conducted by stratified multistage systematic sampling, resulting in 19 777 valid responses for the SF-36 Taiwan version. In this study, the 19 777 participants were randomly divided into two independent samples. One sample (n = 9856) was used for exploratory factor analysis (EFA), and the other (n = 9921) was used for confirmatory factor analysis (CFA). Results: The EFA suggested a seven-first-order-factor structure for the SF-36 Taiwan version. In addition, hierarchical EFA revealed that there was only one second-order factor underlying the seven first-order factors. Further, CFA was conducted on the other sample to compare the performances of the original model with eight first-order factors and two second-order factors, and the revised model with seven first-order factors and one second-order factor. The CFA results revealed that the original model was better than the revised model. Conclusion: According to the EFA and CFA, it can be concluded that the original structure is still acceptable for the SF-36 Taiwan version.
AB - Rationale: The purpose of this study was to examine the factor structure of the Medical Outcome Study Short Form-36 Taiwan version (SF-36 Taiwan version) using data from the 2001 National Health Interview Survey in Taiwan. Method: The 2001 National Health Interview Survey was conducted by stratified multistage systematic sampling, resulting in 19 777 valid responses for the SF-36 Taiwan version. In this study, the 19 777 participants were randomly divided into two independent samples. One sample (n = 9856) was used for exploratory factor analysis (EFA), and the other (n = 9921) was used for confirmatory factor analysis (CFA). Results: The EFA suggested a seven-first-order-factor structure for the SF-36 Taiwan version. In addition, hierarchical EFA revealed that there was only one second-order factor underlying the seven first-order factors. Further, CFA was conducted on the other sample to compare the performances of the original model with eight first-order factors and two second-order factors, and the revised model with seven first-order factors and one second-order factor. The CFA results revealed that the original model was better than the revised model. Conclusion: According to the EFA and CFA, it can be concluded that the original structure is still acceptable for the SF-36 Taiwan version.
KW - Confirmatory factor analysis
KW - Exploratory factor analysis
KW - Health status
KW - SF-36
UR - http://www.scopus.com/inward/record.url?scp=36248946182&partnerID=8YFLogxK
U2 - 10.1111/j.1365-2753.2006.00767.x
DO - 10.1111/j.1365-2753.2006.00767.x
M3 - Article
C2 - 18070259
AN - SCOPUS:36248946182
SN - 1356-1294
VL - 13
SP - 889
EP - 900
JO - Journal of Evaluation in Clinical Practice
JF - Journal of Evaluation in Clinical Practice
IS - 6
ER -
