Evaluation of Psychosis Signs and Symptoms According to the Metacognitive Model: Determining Validity and Reliability of Turkish Version of The Beliefs about Paranoia Scale Short Form( BaPS-SF)e and The Measure of Common Responses to Unusual Experiences (MCR)

Abstract

Introduction: The aim of the study was to determine the validity and reliability of Turkish version of The Beliefs about Paranoia Scale Short Form( BaPS-SF) and The Measure of Common Responses to Unusual Experiences (MCR). Method:105 patients diagnosed with schizophrenia, schizoaffective disorder and bipolar disorder with psychotic features with psychotic signs and symptoms and 80 healthy controls without any psychiatric diagnosis in the past or at the time of evaluation were included in the study. Patients were evaluated with the Positive and Negative Symptom Scale, the Bipolar Depression Rating Scale, the Young Mania Rating Scale, the Hamilton Anxiety Rating Scale and the Cognitive Attention Syndrome 1 Scale (CAS-1), in addition to the BaPS-SF and MCR. Informed consent and permission from the ethics committee were obtained from the participants in the study (Ethics Committee No: 21-KAEK-053).Study data were analyzed with SPSS. Results:The age of the patients was 38.40 (11.94) years, and the control group was 37.11 (12.551) years. The groups were similar in terms of age, gender and education level. Married people were more common in the healthy control group (p=0.005). AII psychopathology scales were significantly higher in the psychosis group (all p values <0.001).The internal consistency of the BaPS-SF was high (Cronbach a=0.898). lt was determined that the BaPS-SF has a three-factor structure: survival strategy, normalizing beliefs and negative beliefs. lt was determined that the MCR has a three-factor structure: social control and reassurance seeking, threat monitoring and avoidance and conscious self-regulation attempts The internal consistency of the subscales ranged from 0.867 to 0.876. Discussion: Current results show that BaPS-SF and MCR are valid and reliable for Turkish population.