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The current version of the questionnaire is the Cambridge Behavioural Inventory-Revised (CBI-R). It was developed as a shorter, more user-friendly version of the original CBI. The CBI was developed to assess a wide range of affective, behavioural and cognitive symptoms in patients with neurodegenerative brain diseases.
The Cambridge Depersonalization Scale (CDS) is a method for determining the severity of depersonalization disorder. It has been proven and accepted as a valid tool for the diagnosis of depersonalization disorder in a clinical setting.
Some depression rating scales are completed by patients. The Beck Depression Inventory, for example, is a 21-question self-report inventory that covers symptoms such as irritability, fatigue, weight loss, lack of interest in sex, and feelings of guilt, hopelessness or fear of being punished. [11]
These versions were evaluated using several criteria, such as internal consistency of the scales (or how much the items in one scale correlate with each other). The ability to fake good or bad while taking the test was also evaluated using a sample of college students that were given different instructions on how to answer the test. [3]
The CDI is a 27-item scale that is self-rated and symptom-oriented. [1] The assessment is now in its second edition. [2] [3] The 27 items on the assessment are grouped into five major factor areas. [1] Clients rate themselves based on how they feel and think, with each statement being identified with a rating from 0 to 2. [1]
The Brief Psychiatric Rating Scale (BPRS) is a rating scale which a clinician or researcher may use to measure psychiatric symptoms such as depression, anxiety, hallucinations and unusual behaviour. The scale is one of the oldest, most widely used scales to measure psychotic symptoms and was first published in 1962. [1]
The Cambridge Neuropsychological Test Automated Battery (CANTAB), [1] originally developed at the University of Cambridge in the 1980s but now provided in a commercial capacity by Cambridge Cognition, is a computer-based cognitive assessment system consisting of a battery of neuropsychological tests, administered to subjects using a touch screen computer.
Each item yields a score of 0 to 6; the overall score thus ranges from 0 to 60. [4] Higher MADRS score indicates more severe depression. Usual cutoff points are: 0 to 6: normal [5] /symptom absent [4] 7 to 19: mild depression [4] [5] 20 to 34: moderate depression [5] 35 to 60: severe depression. [5]