{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T18:14:28Z","timestamp":1789755268106,"version":"4.0.1"},"reference-count":56,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2025,9,2]],"date-time":"2025-09-02T00:00:00Z","timestamp":1756771200000},"content-version":"vor","delay-in-days":1,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,9,1]],"date-time":"2025-09-01T00:00:00Z","timestamp":1756684800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Brain and Behavior"],"published-print":{"date-parts":[[2025,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>Illness perception significantly influences treatment adherence and quality of life among patients with multiple sclerosis (MS). Despite the widespread use of the Revised Illness Perception Questionnaire (IPQ\u2010R) in different languages, a validated Persian version tailored for MS patients was lacking.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A cross\u2010sectional study was conducted with 400 Persian\u2010speaking MS patients recruited from the MS Society of Iran between December 2023 and April 2024. The IPQ\u2010R was translated and culturally adapted through standard forward\u2013backward translation procedures. Validity was assessed through face, content, and construct validity (using both confirmatory factor analysis [CFA] and exploratory factor analysis [EFA]). Reliability was evaluated using Cronbach's alpha and composite reliability (CR).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The Persian IPQ\u2010R showed strong face and content validity, with all items achieving acceptable content validity ratio (CVR) and content validity index (CVI) scores. CFA supported the original seven\u2010factor model (\n                      <jats:italic>\u03c7<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      \/df\u00a0=\u00a01.048, CFI\u00a0=\u00a00.998, RMSEA\u00a0=\u00a00.011). EFA of the cause subscale revealed four interpretable dimensions explaining 75.6% of variance. Most subscales demonstrated excellent internal consistency (\n                      <jats:italic>\u03b1<\/jats:italic>\n                      \u00a0=\u00a00.839\u20130.962), whereas the identity subscale showed lower reliability (\n                      <jats:italic>\u03b1<\/jats:italic>\n                      \u00a0=\u00a00.590). Convergent and discriminant validity were confirmed through average variance extracted (AVE) and Heterotrait\u2013Monotrait (HTMT) indices.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This study revealed that the Persian version of the IPQ\u2010R is a reliable and valid instrument for assessing illness perceptions in Iranian MS patients. It may serve as a valuable tool in clinical and research settings to evaluate patient beliefs and guide personalized care strategies.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/brb3.70821","type":"journal-article","created":{"date-parts":[[2025,9,3]],"date-time":"2025-09-03T05:50:23Z","timestamp":1756878623000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Investigating the Psychometric Properties of the Persian Version of the Revised Illness Perception Questionnaire in a Sample of Patients With Multiple Sclerosis"],"prefix":"10.1002","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-8326-5769","authenticated-orcid":false,"given":"Ali","family":"Bagheri","sequence":"first","affiliation":[{"name":"Department of Clinical Psychology, School of Medicine Shahid Beheshti University of Medical Sciences  Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6136-0697","authenticated-orcid":false,"given":"Maryam","family":"Amini\u2010Fasakhoudi","sequence":"additional","affiliation":[{"name":"Department of Clinical Psychology, School of Medicine Shahid Beheshti University of Medical Sciences  Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3224-8807","authenticated-orcid":false,"given":"Mohammad Ali","family":"Sahraian","sequence":"additional","affiliation":[{"name":"Multiple Sclerosis Research Center, Neuroscience Institute Tehran University of Medical Sciences  Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2474-3381","authenticated-orcid":false,"given":"Abbas","family":"Masjedi\u2010Arani","sequence":"additional","affiliation":[{"name":"Department of Clinical Psychology, School of Medicine Shahid Beheshti University of Medical Sciences  Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-7536-7468","authenticated-orcid":false,"given":"Mohadeseh","family":"Hashemi","sequence":"additional","affiliation":[{"name":"Department of Psychology University of Social Welfare and Rehabilitation Sciences  Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-9790-5480","authenticated-orcid":false,"given":"Fatemeh","family":"Serjouie","sequence":"additional","affiliation":[{"name":"Department of Clinical Psychology, School of Medicine Shahid Beheshti University of Medical Sciences  Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8686-523X","authenticated-orcid":false,"given":"Amir Sam","family":"Kianimoghadam","sequence":"additional","affiliation":[{"name":"Department of Clinical Psychology, School of Medicine Shahid Beheshti University of Medical Sciences  Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,9,2]]},"reference":[{"key":"e_1_2_11_2_1","doi-asserted-by":"publisher","DOI":"10.21315\/mjms2017.24.4.9"},{"key":"e_1_2_11_3_1","doi-asserted-by":"publisher","DOI":"10.3109\/09638288.2012.702849"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.3389\/fpubh.2022.874722"},{"key":"e_1_2_11_5_1","doi-asserted-by":"publisher","DOI":"10.1080\/17437199.2019.1644189"},{"key":"e_1_2_11_6_1","first-page":"1118","article-title":"Content Validity of STEMTIP Using CVR Method","volume":"8","author":"Binti Hassan S. A.","year":"2018","journal-title":"International Journal of Academic Research in Business and Social Sciences"},{"key":"e_1_2_11_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1467-9450.2011.00901.x"},{"key":"e_1_2_11_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpsychores.2005.10.020"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2458-12-852"},{"key":"e_1_2_11_10_1","doi-asserted-by":"publisher","DOI":"10.3390\/healthcare11182469"},{"key":"e_1_2_11_11_1","doi-asserted-by":"publisher","DOI":"10.1159\/000330262"},{"key":"e_1_2_11_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejon.2020.101799"},{"key":"e_1_2_11_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2648.2008.04808.x"},{"key":"e_1_2_11_14_1","doi-asserted-by":"publisher","DOI":"10.1080\/13548506.2011.647702"},{"key":"e_1_2_11_15_1","volume-title":"Cronbach's Coefficient Alpha: Well\u2010Known But Poorly Understood","author":"Cho E.","year":"2015"},{"key":"e_1_2_11_16_1","volume-title":"Statistical Power Analysis for the Behavioral Sciences","author":"Cohen J.","year":"1988"},{"key":"e_1_2_11_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0897-1897(05)80008-4"},{"key":"e_1_2_11_18_1","doi-asserted-by":"publisher","DOI":"10.1111\/jog.13351"},{"key":"e_1_2_11_19_1","volume-title":"Discovering Statistics Using IBM SPSS Statistics","author":"Field A.","year":"2018"},{"key":"e_1_2_11_20_1","doi-asserted-by":"publisher","DOI":"10.1177\/002224378101800313"},{"key":"e_1_2_11_21_1","doi-asserted-by":"publisher","DOI":"10.1037\/bul0000118"},{"key":"e_1_2_11_22_1","doi-asserted-by":"publisher","DOI":"10.1080\/17437199.2021.1878050"},{"key":"e_1_2_11_23_1","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-030-80519-7"},{"key":"e_1_2_11_24_1","volume-title":"Essentials of Business Research Methods","author":"Hair J. F.","year":"2022"},{"key":"e_1_2_11_25_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11747-014-0403-8"},{"key":"e_1_2_11_26_1","doi-asserted-by":"publisher","DOI":"10.1080\/10705519909540118"},{"key":"e_1_2_11_27_1","doi-asserted-by":"publisher","DOI":"10.1111\/ecc.12900"},{"issue":"11","key":"e_1_2_11_28_1","article-title":"Validation of the Georgian Version of the Multiple Sclerosis Quality of Life\u201054 (MSQOL\u201054) Questionnaire for Assessing the Quality of Life in Patients with Multiple Sclerosis","volume":"16","author":"Khutsishvili N.","year":"2024","journal-title":"Cureus"},{"key":"e_1_2_11_29_1","doi-asserted-by":"publisher","DOI":"10.4324\/9781315812274"},{"key":"e_1_2_11_30_1","volume-title":"Principles and Practice of Structural Equation Modeling","author":"Kline R. B.","year":"2023"},{"key":"e_1_2_11_31_1","doi-asserted-by":"publisher","DOI":"10.1556\/2006.2020.00043"},{"key":"e_1_2_11_32_1","doi-asserted-by":"publisher","DOI":"10.1037\/hea0000496"},{"key":"e_1_2_11_33_1","doi-asserted-by":"publisher","DOI":"10.7748\/nr.2018.e1544"},{"key":"e_1_2_11_34_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10803-017-3442-4"},{"key":"e_1_2_11_35_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10072-021-05750-w"},{"key":"e_1_2_11_36_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.drugalcdep.2015.01.008"},{"key":"e_1_2_11_37_1","doi-asserted-by":"publisher","DOI":"10.1080\/08870440290001494"},{"key":"e_1_2_11_38_1","doi-asserted-by":"publisher","DOI":"10.1080\/21642850.2021.2016411"},{"key":"e_1_2_11_39_1","doi-asserted-by":"publisher","DOI":"10.3389\/fpsyg.2021.612609"},{"key":"e_1_2_11_40_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10880-012-9298-z"},{"key":"e_1_2_11_41_1","volume-title":"Essentials of Nursing Research: Appraising Evidence for Nursing Practice","author":"Polit D.","year":"2020"},{"key":"e_1_2_11_42_1","volume-title":"Self\u2010Regulation and Health Behavior: A Systematic Approach","author":"Schwarzer R.","year":"2005"},{"key":"e_1_2_11_43_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12889-022-13172-2"},{"key":"e_1_2_11_44_1","doi-asserted-by":"publisher","DOI":"10.3109\/02699052.2010.523048"},{"key":"e_1_2_11_45_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10880-019-09624-4"},{"key":"e_1_2_11_46_1","volume-title":"Using Multivariate Statistics","author":"Tabachnick B. G.","year":"2013"},{"key":"e_1_2_11_47_1","doi-asserted-by":"publisher","DOI":"10.5116\/ijme.4dfb.8dfd"},{"key":"e_1_2_11_48_1","doi-asserted-by":"publisher","DOI":"10.1159\/000468993"},{"key":"e_1_2_11_49_1","doi-asserted-by":"publisher","DOI":"10.1016\/B978-0-12-443201-7.50010-5"},{"key":"e_1_2_11_50_1","doi-asserted-by":"publisher","DOI":"10.1080\/08870449608400270"},{"key":"e_1_2_11_51_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpainsymman.2019.06.013"},{"key":"e_1_2_11_52_1","doi-asserted-by":"publisher","DOI":"10.1080\/13548500701487697"},{"key":"e_1_2_11_53_1","volume-title":"Polit & Beck Canadian Essentials of Nursing Research","author":"Woo K.","year":"2017"},{"key":"e_1_2_11_54_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11325-022-02598-y"},{"key":"e_1_2_11_55_1","doi-asserted-by":"publisher","DOI":"10.1111\/jan.15593"},{"key":"e_1_2_11_56_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajp.2020.101972"},{"issue":"1","key":"e_1_2_11_57_1","first-page":"760","article-title":"Multiple Sclerosis and Self\u2010Alienation: A Study Based on Self and Others Representations","volume":"12","author":"Ziaie L.","year":"2024","journal-title":"BMC Psychiatry"}],"container-title":["Brain and Behavior"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/brb3.70821","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/brb3.70821","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/brb3.70821","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T16:43:39Z","timestamp":1777481019000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/brb3.70821"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,9]]},"references-count":56,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2025,9]]}},"alternative-id":["10.1002\/brb3.70821"],"URL":"https:\/\/doi.org\/10.1002\/brb3.70821","archive":["Portico"],"relation":{"has-review":[{"id-type":"doi","id":"10.1002\/BRB3.70821\/v1\/decision1","asserted-by":"object"},{"id-type":"doi","id":"10.1002\/BRB3.70821\/v2\/response1","asserted-by":"object"},{"id-type":"doi","id":"10.1002\/BRB3.70821\/v3\/decision1","asserted-by":"object"},{"id-type":"doi","id":"10.1002\/BRB3.70821\/v1\/review2","asserted-by":"object"},{"id-type":"doi","id":"10.1002\/BRB3.70821\/v1\/review1","asserted-by":"object"},{"id-type":"doi","id":"10.1002\/BRB3.70821\/v3\/response1","asserted-by":"object"},{"id-type":"doi","id":"10.1002\/BRB3.70821\/v2\/review1","asserted-by":"object"},{"id-type":"doi","id":"10.1002\/BRB3.70821\/v2\/decision1","asserted-by":"object"}]},"ISSN":["2162-3279","2162-3279"],"issn-type":[{"value":"2162-3279","type":"print"},{"value":"2162-3279","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,9]]},"assertion":[{"value":"2025-05-12","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-08-08","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-09-02","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"e70821"}}