Content of the questionnaire
Target audienceAdults
ApplicationThe BSI is a 53-item self-report symptom inventory designed to reflect the psychological symptom patterns. It is essentially the brief form of the SCL-R-90.
CompositionEach item of the BSI is rated on a 5-point scale of distress (0-4), ranging from “not at all” (0) at one pole to “extremely” (4) at the other.
SubscalesThe BSI is scored and profiled in terms of nine primary symptom dimensions and three global indices of distress. The three global indices, nine dimensions, and 53 items reflect the three principal levels of interpretation of the BSI descending from general superordinate measures of psychological status, through syndromal representation, to individual symptoms.

The primary symptoms dimensions are:
• Somatization (SOM)
• Obsessive-Compulsive (O-C)
• Interpersonal Sensitivity (I-S)
• Depression (DEP)
• Anxiety (ANX)
• Hostility (HOS)
• Phobic Anxiety (PHOB)
• Paranoid Ideation (PAR)
• Psychoticism (PSY)

The global indices are:
• Global Severity Index (GSI)
• Positive Symptom Total (PST)
• Positive Symptom Distress Index (PSDI)

Psychometric properties
GeneralThe BSI has been rated to be a sufficient reliable, sensitive, and valid questionnaire. The questionnaire is sensitive to treatment effects.
There are multiple norm-groups that have been incorporated in the questionnaire:
• Adult Psychiatric Outpatient (males/females)
• Adult Nonpatient (males/females)
• Adult Psychiatric Inpatient (males/females)
• Adolescent Nonpatient (males/females
Literature and copyright

Derogatis, L.R. BSI 18 Brief Symptom Inventory. Administration, Scoring, and Procedures Manual. Bloomington: PsychCorp.

© 1982, 1992 Leonard R. Derogatis, PhD. All rights reserved.

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