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Psychology > Adult Mental Health > Adult Mental Health > Brief Symptom Inventory 18 (BSI 18)

Brief Symptom Inventory 18 (BSI 18)

Product Description

The Brief Symptom Inventory 18 (BSI 18) is designed with reliability in mind. The BSI 18 assessment gathers patient-reported data to help measure psychological distress and psychiatric disorders in medical and community populations.

As the latest in an integrated series of test instruments that include the SCL-90-R| and BSI|, the BSI 18 test offers a more effective, easy-to-administer tool to help support clinical decision-making and monitor progress throughout treatment.


Norm Groups

Report Options

Scoring Options|


Symptom Scales
SOM - Somatization
O-C - Obsessive-Compulsive
I-S - Interpersonal Sensitivity
DEP - Depression
ANX - Anxiety
HOS - Hostility
PHOB - Phobic Anxiety
PAR - Paranoid Ideation
PSY - Psychoticism

Global Indices
GSI - Global Severity Index, Helps measure overall psychological distress level
PSDI - Positive Symptom Distress Index, Helps measure the intensity of symptoms
PST - Positive Symptom Total, Reports number of self-reported symptoms

Norm Groups

  • Adult Nonpatient
    The adult nonpatient norms are based on 974 individuals—494 males and 480 females. Approximately 85% of the sample was white and 60% was married. The mean age was 46.
  • Adult Psychiatric Outpatient
    The adult psychiatric outpatient norms are based on 1,002 individuals—425 males and 577 females. Approximately 67% of the sample was white and 46% was single. The mean age was 31.2.
  • Adult Psychiatric Inpatient
    The adult psychiatric inpatient norms are based on 423 individuals—158 males and 265 females. Approximately 56% of the sample was white and 44% was single. The mean age was 33.1.
  • Adolescent Nonpatient
    The adolescent norms are based on 2,408 individuals—1,601males and 807 females. The data were gathered in six separate schools in two states. Approximately 58% of the sample was white, and the mean age was 15.8.

Report Options

Profile Report

Presents raw and normalized T scores for each of the nine Primary Symptom Dimensions and the three Global Indices. For adults, the plotted T scores are profiled based on your choice of the nonpatient, outpatient or inpatient norms. (The T scores for the remaining norm groups are printed below the profile.) For adolescents, the plotted T scores are based on the adolescent nonpatient norms.

Scoring Options

All assessments previously available on Q-local are now available on our new platform – Q-global. Visit our Q-global minisite| to find out more about content and availability.

NB: Q-local will still be supported in the interim, if you wish to purchase Q-local reports please contact Customer Services on 0845 630 8888 or email|.


Price list

Change the quantities of your desired products, then click "Add to basket".
If your required component is not listed, please contact Customer Services on: or 0845 630 88 88 (Calls cost 3p per minute plus your phone company's access charge).

Handscore starter kit with oncology norms:

Includes manual, 50 answer sheets with test items and 50 profile forms.
£125.97 inc VAT
Available in 21 days after placing your order

Handscore starter kit with community norms:

Includes manual, 50 answer sheets with test items and 50 profile forms
£125.97 inc VAT
Profile forms with community norms, pack of 50
£36.60 inc VAT
£42.50 inc VAT
Handscore answer sheets, pack of 50
£79.80 inc VAT
Profile forms, pack of 50 with oncology norms
£31.11 inc VAT
Q-global BSI 18 Profile Report
£7.80 inc VAT

Key Information


Quickly measure and monitor psychological distress


Leonard R Derogatis

Publication Year


Age Range

18 years and older


Individual - 4 minutes

Qualification Code


£123.50 (Complete kit price from)
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