RT Journal Article SR Electronic T1 Effort testing in patients with fibromyalgia and disability incentives. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1892 OP 1899 VO 28 IS 8 A1 R O Gervais A1 A S Russell A1 P Green A1 L M Allen, 3rd A1 R Ferrari A1 S D Pieschl YR 2001 UL http://www.jrheum.org/content/28/8/1892.abstract AB OBJECTIVE: To examine whether symptom exaggeration is a factor in complaints of cognitive dysfunction using 2 new validated instruments in patients with fibromyalgia (FM). METHODS: Ninety-six patients with FM and 16 patients with rheumatoid arthritis (RA) were administered 2 effort or symptom validity tests designed to detect exaggerated memory complaints as part of a battery of psychological tests and self-report questionnaires. RESULTS: A large percentage of patients with FM who were on or seeking disability benefits failed the effort tests. Only 2 patients with FM who were working and/or not claiming disability benefits and no patient with RA scored below the cutoffs for exaggeration of memory difficulties. CONCLUSION: This study illustrates the importance of assessing for exaggeration of cognitive symptoms and biased responding in patients with FM presenting for disability related evaluations.