RT Journal Article SR Electronic T1 Development of the effective musculoskeletal consumer scale. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1392 OP 1400 VO 34 IS 6 A1 Elizabeth Kristjansson A1 Peter S Tugwell A1 Andrew J Wilson A1 Peter M Brooks A1 S Michelle Driedger A1 Cindy Gallois A1 Annette M O'Connor A1 Ann Qualman A1 Nancy Santesso A1 Janet Wale A1 George A Wells YR 2007 UL http://www.jrheum.org/content/34/6/1392.abstract AB Programs and initiatives have been created to empower, educate, and provide information to consumers; these are sometimes generically known as self-management interventions. Evaluating and comparing such programs has been a challenge, as many skills that consumers believe are important to manage and participate in their individual healthcare are not currently captured by existing tools. The objective of the Effective Musculoskeletal Consumer Project is to develop a scale to measure an effective consumer. A review of the literature, interviews, workshops, and preliminary surveys at OMERACT 7 (May 2005) were conducted in the first phases of the Project. A questionnaire consisting of 64 items was developed to measure the skills and attributes of an effective musculoskeletal (MSK) consumer. Content experts on our team reduced this scale to 48 items, which was pilot-tested with consumers from Canada and Australia. Dimensionality assessment showed that the scale was unidimensional. Classical and item response theory analyses showed that the 48-item scale had quite high reliability, but that 2 items were very poor. Based on the item analysis, 35 items were retained. The revised scale was presented at OMERACT 8, where a panel reviewed the scale and provided input. This input and another expert review by our team was used to further refine the Effective Consumer Scale to 17 items. Plans are now under way to validate this 17-item scale in self-management interventions.