ABSTRACT
La Escala de Valoración de Síntomas Psicóticos (PSYRATS) es una herramienta de evaluación clínica que se centra en la medición detallada de delirios y alucinaciones en pacientes con psicosis. El objetivo de este estudio fue examinar las propiedades psicométricas de la versión en portugués de la PSYRATS. Se evaluó una muestra de 92 pacientes ambulatorios con la PSYRATS y la Escala de Síndromes Positivo y Negativo (PANSS). Los pacientes padecían de esquizofrenia o trastornos esquizoafectivos y presentaban síntomas psicóticos persistentes. Se encontró una buena fiabilidad entre evaluadores, fiabilidad de repetibilidad, validez concurrente y consistencia interna. El análisis factorial de los ítems de la escala de alucinaciones auditivas reveló una solución de cuatro factores: características de la emoción y factor de perturbación (factor 1), un factor de características físicas (factor 2), un factor de características de control (factor 3) y un factor de atribución cognitiva (factor 4). En cuanto a los ítems de la escala de delirios, se encontró una solución de dos factores: un factor de interpretación cognitiva y perturbación (factor 1) y un factor de características emocionales (factor 2). La versión en portugués de la PSYRATS replicó parcialmente resultados publicados anteriormente en otros países
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
Subject(s)
Humans , Psychotic Disorders/classification , Psychiatric Status Rating Scales/statistics & numerical data , Schizophrenia/diagnosis , Psychometrics/instrumentation , Reproducibility of Results , Reproducibility of Results , Hallucinations/diagnosis , Delusions/diagnosis , Psychotic Disorders/diagnosisABSTRACT
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.
