Validation of the Portuguese version of the Psychotic Symptom Rating Scales (PSYRATS)

Authors

  • Diogo Telles-Correia University Clinic of Psychiatry and Medical Psychology, Faculty of Medicine, University of Lisbon, Lisboa, Portugal; Santa Maria Hospital, Department of Psychiatry, Lisboa, Portugal
  • Nuno Barbosa-Rocha Polytechnic Institute of Porto, Health School, Porto, Portugal
  • João Gama-Marques University Clinic of Psychiatry and Medical Psychology, Faculty of Medicine, University of Lisbon, Lisboa, Portugal; Schizophrenia Clinic, Hospital Júlio de Matos, Lisbon Psychiatric Hospital Center, Portugal
  • Ana L. Moreira University Clinic of Psychiatry and Medical Psychology, Faculty of Medicine, University of Lisbon, Lisboa, Portugal
  • Cátia Alves-Moreira Schizophrenia Clinic, Hospital Júlio de Matos, Lisbon Psychiatric Hospital Center, Portugal
  • Sérgio Saraiva University Clinic of Psychiatry and Medical Psychology, Faculty of Medicine, University of Lisbon, Lisboa, Portugal; Schizophrenia Clinic, Hospital Júlio de Matos, Lisbon Psychiatric Hospital Center, Portugal
  • Filipa Antunes University Clinic of Psychiatry and Medical Psychology, Faculty of Medicine, University of Lisbon, Lisboa, Portugal; Santa Maria Hospital, Department of Psychiatry, Lisboa, Portugal
  • Carolina Almeida University Clinic of Psychiatry and Medical Psychology, Faculty of Medicine, University of Lisbon, Lisboa, Portugal; Santa Maria Hospital, Department of Psychiatry, Lisboa, Portugal
  • Sérgio Machado Institute of Psichiatry, Federal University of Rio de Janeiro, Rio de Janeiro, Brasil
  • Gillian Haddock Section for Clinical and Health Psychology, School of Psychological Sciences, University of Manchester, Manchester, United Kingdom

Keywords:

Schizophrenia, Psychosis, Hallucinations, Delusions, Psychometrics

Abstract

The Psychotic Symptom Rating Scales (PSYRATS) is a clinical assessment tool that focuses on the detailed measurement of delusions and hallucinations in patients with psychosis. The goal of this study was to examine the psychometric properties of the Portuguese version of the PSYRATS. A sample of 92 outpatients suffering from schizophrenia or schizoaffective disorders and presenting persistent psychotic symptoms was assessed using the PSYRATS and the Positive and Negative Syndrome Scale (PANSS). Good inter-rater reliability, test-retest reliability, concurrent validity and internal consistency were found.

Factor analysis of the auditory hallucinations scale items disclosed a four-factor solution: emotion characteristics and disruption factor (factor 1), a physical characteristics factor (factor 2), a control characteristics factor (factor 3) and a cognitive attribution factor (factor 4). Regarding the delusions scale items, a two-factor solution was found: cognitive interpretation and disruption factor (factor 1) and an emotional characteristics (factor 2). The Portuguese version of the PSYRATS partially replicates previously published results in other countries.

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Published

2017-03-01

How to Cite

Telles-Correia, Diogo, et al. “Validation of the Portuguese Version of the Psychotic Symptom Rating Scales (PSYRATS)”. Actas Españolas De Psiquiatría, vol. 45, no. 2, Mar. 2017, pp. 56-61, https://actaspsiquiatria.es/index.php/actas/article/view/193.

Issue

Vol. 45 No. 2 (2017)

Section

Original