Available online http://arthritis-research.com/content/11/5/415 Page 1 of 1 (page number not for citation purposes) Correction Following publication of our recent article [1] we noticed that the file provided as additional data file 2, the Symptom Impact Questionnaire (SIQR), was incorrect. The correct file is given here as additional data file 1. Additional file Reference 1. Bennett RM, Friend R, Jones KD, Ward R, Han BK, Ross RL: The Revised Fibromyalgia Impact Questionnaire (FIQR): validation and psychometric properties. Arthritis Res Ther 2009, 11:R120. Correction Correction: The Revised Fibromyalgia Impact Questionnaire (FIQR): validation and psychometric properties Robert M Bennett 1 , Ronald Friend 1,2 , Kim D Jones 1 , Rachel Ward 1 , Bobby K Han 3 and Rebecca L Ross 1 1 Fibromyalgia Research Unit, Oregon Health & Science University, 3455 SW Veterans Road, Portland, OR 97239, USA 2 Department of Psychology, Stony Brook University, Stony Brook, NY 11794-2500, USA 3 Physicians Building Group, 1234 Commercial Street SE, Salem, OR 97302, USA Corresponding author: Robert M Bennett, bennetrob1@comcast.net Published: 16 October 2009 Arthritis Research & Therapy 2009, 11:415 (doi:10.1186/ar2830) This article is online at http://arthritis-research.com/content/11/5/415 © 2009 BioMed Central Ltd See related research article by Bennett et al., http://arthritis-research.com/content/11/4/R120 The following Additional file is available online: Additional data file 1 A PDF that provides the 2 page version of the FIQR that was used in the non-fibromyalgia patients; this question- naire does not use the word ‘fibromyalgia’ and is termed the Symptom Impact Questionnaire (SIQR). See http://arthritis- research.com/content/supplementary/ar2830-s1.pdf . RL: The Revised Fibromyalgia Impact Questionnaire (FIQR): validation and psychometric properties. Arthritis Res Ther 2009, 11:R120. Correction Correction: The Revised Fibromyalgia Impact Questionnaire (FIQR):. Questionnaire (FIQR): validation and psychometric properties Robert M Bennett 1 , Ronald Friend 1,2 , Kim D Jones 1 , Rachel Ward 1 , Bobby K Han 3 and Rebecca L Ross 1 1 Fibromyalgia Research. Health & Science University, 3455 SW Veterans Road, Portland, OR 97239, USA 2 Department of Psychology, Stony Brook University, Stony Brook, NY 11794-2500, USA 3 Physicians Building Group, 1234