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Functional status and self-efficacy were measured at pretest, posttest, and follow-up using the Fibromyalgia Impact Questionnaire and the Chronic Pain Self-Efficacy Scale. No effects of guided imagery could be established. Explanations for the diverging results between studies might be found in the content of the exercises, length of the intervention period, and background of participants.<\/jats:p>","DOI":"10.1177\/1359105313477673","type":"journal-article","created":{"date-parts":[[2014,4,24]],"date-time":"2014-04-24T15:39:44Z","timestamp":1398353984000},"page":"678-688","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":17,"title":["Guided imagery in people with fibromyalgia: A randomized controlled trial of effects on pain, functional status and self-efficacy"],"prefix":"10.1177","volume":"19","author":[{"given":"Renate","family":"Verkaik","sequence":"first","affiliation":[{"name":"Netherlands Institute for Health Services Research NIVEL, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Martine","family":"Busch","sequence":"additional","affiliation":[{"name":"Van Praag Instituut, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Trees","family":"Koeneman","sequence":"additional","affiliation":[{"name":"Aveant, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rianny","family":"van den Berg","sequence":"additional","affiliation":[{"name":"F.E.S., The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Spreeuwenberg","sequence":"additional","affiliation":[{"name":"Netherlands Institute for Health Services Research NIVEL, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anneke L","family":"Francke","sequence":"additional","affiliation":[{"name":"Netherlands Institute for Health Services Research NIVEL, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2013,3,21]]},"reference":[{"key":"bibr1-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1016\/j.jbspin.2007.09.010"},{"key":"bibr2-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1016\/0304-3959(95)00021-J"},{"key":"bibr3-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1016\/0005-7916(72)90045-6"},{"key":"bibr4-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1016\/j.amjmed.2009.09.008"},{"key":"bibr5-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1097\/00002281-200201000-00009"},{"key":"bibr6-1359105313477673","volume-title":"Hierarchical Linear Models: Applications and Datamanagement Methods","author":"Bryk AS","year":"1992"},{"issue":"18","key":"bibr7-1359105313477673","first-page":"728","volume":"91","author":"Burckhardt CS","year":"1991","journal-title":"The Journal of Rheumatology"},{"key":"bibr8-1359105313477673","doi-asserted-by":"publisher","DOI":"10.2217\/14622416.8.1.67"},{"key":"bibr9-1359105313477673","volume-title":"Statistical Power Analysis for the Behavioral Sciences","author":"Cohen J","year":"1988","edition":"2"},{"key":"bibr10-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1891\/0739-6686.17.1.57"},{"key":"bibr11-1359105313477673","first-page":"233","volume":"14","author":"Fors EA","year":"2000","journal-title":"European Journal of Psychiatry"},{"key":"bibr12-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3956(02)00003-1"},{"key":"bibr13-1359105313477673","volume-title":"Multilevel Statistical Models","author":"Goldstein H","year":"1995"},{"key":"bibr14-1359105313477673","volume-title":"Complementary Medicine: An Integrated Approach","author":"Lewith G","year":"1996"},{"key":"bibr15-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1097\/MJT.0b013e3181ff7bee"},{"key":"bibr16-1359105313477673","first-page":"4","volume":"20","author":"Menzies V","year":"2004","journal-title":"Advances in Mind-Body Medicine"},{"key":"bibr17-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1089\/acm.2006.12.23"},{"key":"bibr18-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1016\/j.berh.2007.03.007"},{"key":"bibr19-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1016\/0304-3959(94)90097-3"},{"key":"bibr20-1359105313477673","volume-title":"MLwiN (version 1.10)","author":"Rasbash J","year":"2000"},{"key":"bibr21-1359105313477673","volume-title":"Manual Supplement for MLwiN Version 2.14","author":"Rasbash J","year":"2009"},{"key":"bibr22-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1002\/hup.1029"},{"key":"bibr23-1359105313477673","doi-asserted-by":"publisher","DOI":"10.1186\/ar1950"},{"key":"bibr24-1359105313477673","unstructured":"Van Praag Institute (2005) Gezonde Verbeelding. 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