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The practical impact of differential item functioning analyses in a health-related quality of life instrument.
Scott NW, Fayers PM, Aaronson NK, Bottomley A, de Graeff A, Groenvold M, Gundy C, Koller M, Petersen MA, Sprangers MA; EORTC Quality of Life Group; Quality of Life Cross-Cultural Meta-Analysis Group. Scott NW, et al. Among authors: petersen ma. Qual Life Res. 2009 Oct;18(8):1125-30. doi: 10.1007/s11136-009-9521-z. Epub 2009 Aug 4. Qual Life Res. 2009. PMID: 19653125
The relationship between overall quality of life and its subdimensions was influenced by culture: analysis of an international database.
Scott NW, Fayers PM, Aaronson NK, Bottomley A, de Graeff A, Groenvold M, Koller M, Petersen MA, Sprangers MA; EORTC Quality of Life Group; Quality of Life Cross-Cultural Meta-Analysis Group. Scott NW, et al. Among authors: petersen ma. J Clin Epidemiol. 2008 Aug;61(8):788-95. doi: 10.1016/j.jclinepi.2007.08.015. Epub 2008 Mar 21. J Clin Epidemiol. 2008. PMID: 18359194
A simulation study provided sample size guidance for differential item functioning (DIF) studies using short scales.
Scott NW, Fayers PM, Aaronson NK, Bottomley A, de Graeff A, Groenvold M, Gundy C, Koller M, Petersen MA, Sprangers MA; EORTC Quality of Life Group; Quality of Life Cross-Cultural Meta-Analysis Group. Scott NW, et al. Among authors: petersen ma. J Clin Epidemiol. 2009 Mar;62(3):288-95. doi: 10.1016/j.jclinepi.2008.06.003. Epub 2008 Sep 6. J Clin Epidemiol. 2009. PMID: 18774693
Differential item functioning (DIF) in the EORTC QLQ-C30: a comparison of baseline, on-treatment and off-treatment data.
Scott NW, Fayers PM, Aaronson NK, Bottomley A, de Graeff A, Groenvold M, Gundy C, Koller M, Petersen MA, Sprangers MA; EORTC Quality of Life Group and the Quality of Life Cross-Cultural Meta-Analysis Group. Scott NW, et al. Among authors: petersen ma. Qual Life Res. 2009 Apr;18(3):381-8. doi: 10.1007/s11136-009-9453-7. Epub 2009 Feb 27. Qual Life Res. 2009. PMID: 19247808
Interpretation of differential item functioning analyses using external review.
Scott NW, Fayers PM, Aaronson NK, Bottomley A, de Graeff A, Groenvold M, Gundy C, Koller M, Petersen MA, Sprangers MA; EORTC Quality of Life Group; Quality of Life Cross-Cultural Meta-Analysis Group. Scott NW, et al. Among authors: petersen ma. Expert Rev Pharmacoecon Outcomes Res. 2010 Jun;10(3):253-8. doi: 10.1586/erp.10.22. Expert Rev Pharmacoecon Outcomes Res. 2010. PMID: 20545590 Review.
253 results