Validation of the Lithuanian Version of the BNSS, CDSS, and the SCoRS
This study aims to validate the Lithuanian version of the Brief Negative Symptoms Scale, Calgary Depression Scale for Schizophrenia, and Schizophrenia Cognition Rating Scale in a Lithuanian sample. This will be done by comparing results obtained from the Brief Negative Symptoms Scale, Calgary Depression Scale for Schizophrenia, and Schizophrenia Cognition Rating Scale with results obtained from the Positive and Negative Symptoms Scale, the Montgomery Asberg Depression Rating Scale, and the Montreal Cognitive Assessment test.
- EligibilityCriteria: Inclusion Criteria:  age 18 - 65 years old; Diagnosis of F20, F25 or F21 according to ICD-10; Signed informed consent form.  Exclusion Criteria:  Age younger than 18 or older than 65 years old; Did not sign the informed consent form; Legally inactive person Patients with a comorbid or primary diagnosis of mental retardation according to ICD-10 (F70 - F79); Patients with a comorbid or primary diagnosis of mental and behavioural disorders due to psychoactive substance use (F10 - F19) Patients with a comorbid of primary diagnosis of organic, including symptomatic, mental disorders (F00 - F09) - Gender: All - MinimumAge: 18 Years - MaximumAge: 65 Years - StdAgeList: Adult, Older Adult - StudyPopulation: Inpatients between 18 and 65 years old with a diagnosis of F20, F25, or F21, according to ICD-10, who sign the informed consent form and do not have any exclusion criteria, will be included in the study. We will not devide patients who have active psychotic symptoms and those who do not. - SamplingMethod: Non-Probability Sample