{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T15:45:51Z","timestamp":1789055151929,"version":"build-2803163510"},"reference-count":34,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2022,10,10]],"date-time":"2022-10-10T00:00:00Z","timestamp":1665360000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000269","name":"Economic and Social Research Council","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000269","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Clin Psychol"],"published-print":{"date-parts":[[2023,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>The new International Classification of Diseases came into effect in 2022 (ICD\u201011; World Health Organization, 2022) and included updated descriptions and diagnostic rules for \u201cDepressive Episode\u201d and \u201cGeneralized Anxiety Disorder.\u201d\u00a0No self\u2010report measures align with these disorders so this study reports the development and initial validation of the \u201cInternational Depression Questionnaire\u201d (IDQ) and \u201cInternational Anxiety Questionnaire\u201d (IAQ).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Items were developed that aligned to the ICD\u201011 descriptions and their performance was assessed using data from a community sample (\n                      <jats:italic>N<\/jats:italic>\n                      \u2009=\u20092058) that was representative of the United Kingdom adult population.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Item response theory models indicated that the two scales were unidimensional, and the items performed well in terms of difficulty and discrimination. Estimates of internal reliability were high. Based on ICD\u201011 derived diagnostic algorithms, 7.4% met requirements for ICD\u201011 Depressive Episode and 7.1% for Generalized Anxiety Disorder.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The IDQ and the IAQ are short, easy to use, self\u2010report measures aligned to the new and updated ICD\u201011 diagnostic descriptions. This study provides initial evidence that the scales produce scores that are reliable and valid.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jclp.23446","type":"journal-article","created":{"date-parts":[[2022,10,10]],"date-time":"2022-10-10T12:38:30Z","timestamp":1665405510000},"page":"854-870","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":37,"title":["The development and initial validation of self\u2010report measures of ICD\u201011 depressive episode and generalized anxiety disorder: The International Depression Questionnaire (IDQ) and the International Anxiety Questionnaire (IAQ)"],"prefix":"10.1002","volume":"79","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6262-5223","authenticated-orcid":false,"given":"Mark","family":"Shevlin","sequence":"first","affiliation":[{"name":"School of Psychology Ulster University Coleraine Northern Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philip","family":"Hyland","sequence":"additional","affiliation":[{"name":"Department of Psychology Maynooth University Maynooth Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah","family":"Butter","sequence":"additional","affiliation":[{"name":"School of Psychology Ulster University Coleraine Northern Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Orla","family":"McBride","sequence":"additional","affiliation":[{"name":"School of Psychology Ulster University Coleraine Northern Ireland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Todd K.","family":"Hartman","sequence":"additional","affiliation":[{"name":"Department of Social Statistics University of Manchester Manchester England"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thanos","family":"Karatzias","sequence":"additional","affiliation":[{"name":"School of Health &amp; Social Care Napier University Edinburgh Scotland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard P.","family":"Bentall","sequence":"additional","affiliation":[{"name":"Department of Psychology University of Sheffield Sheffield England"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,10,10]]},"reference":[{"key":"e_1_2_9_2_1","unstructured":"American Psychiatric Association (APA) (1994). 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