Validation of the Indonesian version of psychotic symptom rating scale (Ina-PSYRATS) hallucination subscale

The Psychotic Symptom Rating Scales (PSYRATS) is the most widely used validated scale to measure the specific symptoms of auditory hallucinations and delusions. The purpose of this study was to validate and examine the psychometric properties of the auditory hallucination component of the Indonesian-PSYRATS (Ina-PSYRATS). The study was performed in the outpatient clinic of the Department of Psychiatry, Dr. Cipto Mangunkusumo Hospital, with 50 schizophrenia patients who had experienced or reported verbal auditory hallucinations. We conducted translation and back-translation, panel test, pilot test, and validation test. The psychometric properties of Ina-PSYRATS were studied and a comparison was made between the PSYRATS and the Positive and Negative Syndrome Scale (PANSS). The internal validity was good (95%). The internal consistency of InaPSYRATS was good, as revealed by Cronbach's alpha value (0.90). Factor analysis replicated three components consisting of emotional, cognitive, and physical factors, similar to the factorial structure of the original auditory hallucination scale. Spearman's rank-order correlation showed a significant positive relationship between the total auditory hallucination score and PANSSS auditory hallucination item (P3). The auditory hallucination domain of Ina-PSYRATS is a reliable and valid assessment tool suitable for clinical applications.