{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T17:26:57Z","timestamp":1785432417092,"version":"3.56.0"},"reference-count":53,"publisher":"Cambridge University Press (CUP)","license":[{"start":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T00:00:00Z","timestamp":1783641600000},"content-version":"unspecified","delay-in-days":190,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/501100018812","name":"Instituto de Investigaci\u00f3n Marqu\u00e9s de Valdecilla","doi-asserted-by":"publisher","award":["MTVAL21\/02"],"award-info":[{"award-number":["MTVAL21\/02"]}],"id":[{"id":"10.13039\/501100018812","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Span. J. Psychol."],"published-print":{"date-parts":[[2026]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The onset of an illness has the potential to induce profound changes in a person\u2019s life. However, being diagnosed with a physical illness may not carry the same impact as being diagnosed with a mental health disorder. Among them, psychotic disorders exhibit the highest level of social stigma and acceptance challenges, along with compromised social functioning, diminished quality of life, and disruptions in personal, social, and vocational domains. The Impact of Illness Scale (IIS) measures how an illness has adversely affected a person\u2019s life as perceived by that person. This study aimed to assess the psychometric properties of the IIS in a sample of 141 people with a first episode of psychosis (FEP) (mean age 35.7\u00a0years, 51.8% female). The study explored the factor structure, internal consistency, convergent and discriminant validity, and temporal stability of the IIS. The confirmatory factor analysis (CFA) model showed an excellent fit of the data, confirming a one-factor structure, internal solid consistency (McDonald\u2019s \u03c9\u00a0=\u00a0.95; Cronbach\u2019s \u03b1\u00a0=\u00a0.94), theoretically coherent convergent and discriminant validity with measures of internalized stigma, negative beliefs, symptoms of psychosis and general psychopathology symptoms, and moderate test\u2013retest reliability. Overall, these findings support the IIS as a reliable and valid tool for assessing the subjective impact of psychosis, offering clinical and research utility for understanding patient experiences beyond symptom severity.<\/jats:p>","DOI":"10.1017\/sjp.2026.10035","type":"journal-article","created":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T09:36:24Z","timestamp":1783676184000},"source":"Crossref","is-referenced-by-count":0,"title":["Factor Structure and Psychometric Properties of the Impact of Illness Scale (IIS) in Individuals with First Episode of Psychosis in Spain"],"prefix":"10.1017","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6393-2695","authenticated-orcid":false,"given":"Sandra","family":"Mart\u00ednez-G\u00f3mez","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/02f40zc51","id-type":"ROR","asserted-by":"publisher"}],"name":"Universidad de 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