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Insight assessment in psychosis and psychopathological correlates: Validation of the Spanish version of the schedule for assessment of insight – Expanded version

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Juan Soriano-Barceló, Javier López-Moríñigo, Ramón Ramos-Ríos, E. Alonso Rodríguez-Zanabria, Anthony S. David

Original languageEnglish
Pages (from-to)55-65
Number of pages11
JournalEuropean Journal of Psychiatry
Volume30
Issue number1
Accepted/In press15 Jan 2016
Published15 Jan 2016

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Abstract

Background and Objectives: Lack of insight is a cardinal feature of psycho - sis. Insight has been found to be a multidimensional concept, including awareness of having a mental illness, ability to relabel psychotic phenomena as abnormal and compliance with treatment., which can be measured with the Schedule for Assessment of Insight (SAI-E). The aim of this study was to validate the Spanish version of SAI-E. Methods: The SAI-E was translated into Spanish and back-translated into English, which was deemed appropriate by the original scale author. Next, the Spanish version of the SAI-E was administered to 39 patients with schizophrenia or schizoaffective disorder (DSM-IV criteria) from a North Peruvian psychiatric hospital. The Positive and Negative Syndrome Scale for Schizophrenia (PANSS) and the Scale of Unawareness of Mental Disorder (SUMD) were also administered. Specifically, internal consistency and convergent validity were assessed. Results: Internal consistency between the 11 items of the SAI-E was found to be good to excellent (α = 0.942). Compliance items did not contribute to internal consistency (A = 0.417, B = 572). Inter-rater reliability was excellent (ICC = 0.99). Regarding concurrent validity, the SAI-E total score correlated negatively with the lack of insight and judgement item of the PANNS (r = -0.91, p <0.01) and positively with the SUMD total score (r = 0.92, p <0.001). Conclusions: The Spanish version of the SAI-E scale was demonstrated to have both excellent reliability and external validity in our sample of South American Spanish-speaking patients with schizophrenia spectrum disorders.

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