{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,15]],"date-time":"2026-07-15T17:30:56Z","timestamp":1784136656722,"version":"3.55.0"},"reference-count":40,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2024,11,16]],"date-time":"2024-11-16T00:00:00Z","timestamp":1731715200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000024","name":"Canadian Institutes of Health Research","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000024","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000156","name":"Fonds de Recherche du Qu\u00e9bec - Sant\u00e9","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000156","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Intl J Eating Disorders"],"published-print":{"date-parts":[[2025,2]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>The Eating Disorder Examination Questionnaire (EDE\u2010Q) is a widely\u2010used measure of eating\u2010disorder symptoms. However, inconsistent replication of the subscale structure raises concern about validity. To provide a rigorous test of the EDE\u2010Q's dimensionality and item\u2010quality, we applied modern and classical test theory approaches to data obtained from a large, transdiagnostic sample of people with clinical eating disorders.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>We analyzed data from 1197 individuals (<jats:italic>M<\/jats:italic>\n<jats:sub>age<\/jats:sub>\u2009=\u200927.9\u2009years, SD\u2009=\u200910.08, 95% female) with various eating disorders, who had been assessed for treatment at a specialized program. Exploratory analyses (including Parallel Analyses), Confirmatory Factor Analyses (CFA) and graded\u2010response Item Response Theory (IRT) analyses, were conducted with Mplus.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Factor analyses showed inappropriate fit to the original EDE\u2010Q subscales, as well as for alternative 1,2,3, and 4\u2010factor solutions. Parallel analyses suggested a one\u2010dimensional structure as best fit. IRT analyses showed substantial variability in EDE\u2010Q\u2010item quality and indicated that five items (fear of weight gain, feeling fat, desire to lose weight, importance of weight, importance of shape) were most pertinent to determining severity. The construct validity of the five EDE\u2010Q items was confirmed by a CFA, showing excellent fit.<\/jats:p><\/jats:sec><jats:sec><jats:title>Discussion<\/jats:title><jats:p>Our results suggest that EDE\u2010Q scores are best interpreted as spanning a one\u2010factor continuum. IRT results suggest that some items are more pertinent than others for determining eating\u2010disorder severity. Results could be useful for establishing short EDE\u2010Q versions, such as a five\u2010item version, which, in turn, would be helpful for measurement\u2010based clinical practice and for data\u2010collection in epidemiological and experimental studies.<\/jats:p><\/jats:sec>","DOI":"10.1002\/eat.24330","type":"journal-article","created":{"date-parts":[[2024,11,16]],"date-time":"2024-11-16T13:20:14Z","timestamp":1731763214000},"page":"349-361","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Examining Dimensionality and Item\u2010Quality of the Eating Disorder Examination Questionnaire in Individuals With Eating Disorders Using Item Response Theory Analysis"],"prefix":"10.1002","volume":"58","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7315-7055","authenticated-orcid":false,"given":"Rachel","family":"Dufour","sequence":"first","affiliation":[{"name":"Department of Psychology Concordia University  Montreal Canada"},{"name":"Research Centre Douglas Mental Health University Institute  Montreal Canada"},{"name":"Eating Disorders Continuum Douglas Mental Health University Institute  Montreal Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4887-7824","authenticated-orcid":false,"given":"Howard","family":"Steiger","sequence":"additional","affiliation":[{"name":"Research Centre Douglas Mental Health University Institute  Montreal Canada"},{"name":"Eating Disorders Continuum Douglas Mental Health University Institute  Montreal Canada"},{"name":"Department of Psychiatry McGill University  Montreal Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0863-8098","authenticated-orcid":false,"given":"Linda","family":"Booij","sequence":"additional","affiliation":[{"name":"Department of Psychology Concordia University  Montreal Canada"},{"name":"Research Centre Douglas Mental Health University Institute  Montreal Canada"},{"name":"Eating Disorders Continuum Douglas Mental Health University Institute  Montreal Canada"},{"name":"Department of Psychiatry McGill University  Montreal Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2024,11,16]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eatbeh.2012.09.002"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.eatbeh.2011.01.005"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1176\/appi.books.9780890425787"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1037\/1040\u20103590.19.3.356"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1037\/a0023246"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/eat.20931"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1037\/pas0000703"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0005\u20107967(00)00033\u20104"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1192\/bjp.154.6.807"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1093\/acprof:oso\/9780195377033.001.0001"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.brat.2005.04.003"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1037\/t03974\u2010000"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/1098-108X(199412)16:4<363::AID-EAT2260160405>3.0.CO;2-#"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0152744"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1007\/s11695\u2010012\u20100840\u20108"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/eat.22358"},{"key":"e_1_2_10_18_1","first-page":"174","volume-title":"Fundamentals of Item Response Theory","author":"Hambleton R. 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