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Interpersonal Behavior Survey (IBS)

Interpersonal Behavior Survey (IBS)
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Distinguishes between assertive and aggressive behaviours, identifying excesses and deficites in each

Age Range
Adolescents and adults

Self-report: 45 minutes                                   
Short Form: 30 minutes                                   
Screening Form: 10 minutes

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Interpersonal Behavior Survey (IBS)

P.A. Mauger, Ph.D., D.R. Adkinson, M.A., S.K. Zoss, Ph.D., G. Firestone, Ph.D.,& J.D. Hook, M.A.


The Interpersonal Behavior Survey (IBS) identifies interaction styles that may lead to conflict at home, on the job, or in school.

Used in individual and group therapy, assertiveness training, marriage and family counseling, and career guidance, the IBS measures various dimensions of assertive and aggressive behavior, identifying excesses and deficits in both.

Designed for adults and adolescents, the IBS is a self-report inventory composed of the following scales:

General Aggressiveness Refusing Demands
Conflict Avoidance Verbal Aggressiveness
Frankness Self-Confidence
Hostile Stance Denial
Dependency Physical Aggressiveness
Praise (Giving/Receiving) Initiating Assertiveness
Expression of Anger  Infrequency
Shyness Passive Aggressiveness
Requesting Help  Defending Assertiveness
Disregard for Rights Impression Management
General Assertiveness


The IBS can be administered to individuals or groups in just 45 minutes. For a quicker but still comprehensive assessment, you can use the Short Form IBS Auto-score Form. With just 133 items the Auto-score Form can be completed in about 30 minutes and scored quickly and easily. If you need no more than a brief screening device, you can administer only the first 38 items on the Short Form, which takes 10 minutes or less.

Written at a sixth-grade reading level, the inventory can be used with a broad range of people. The Manual provides sex-specific norms for a general sample and separate norms for African Americans, college students, and adolescents.

The IBS is commonly used in marriage and family counseling to identify interaction styles that may lead to conflict. In individual or group therapy, it can be used to help people distinguish assertive from aggressive behavior. The IBS serves as an excellent pre- and post-treatment measure because the items, written in the present tense, are highly sensitive to change occurring over the course of therapy. 

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New   Two New Training Workshops:  Cognitive Behaviour Therapy and Brain Based Psychotherapy  Brochure & Enrolment Forms

Price Increase: Please note that there would be a price increase from 1 April 2018. You can download Price Increase Letter 2018

New  Mindmuzik Training Workshops 2018.  Mindmuzik Media is an HPCSA accredited training provider. Brochure & Enrolment Forms

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 abas 3 kit web

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 2017 Edition
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Bullying: An Overview-download article

The following assessments could assist with identifying potential/actual  bullying or behaviour/attitude and/or effects of being bullied:

Reynolds Bully-Victimization Scales for more

Adolescent Anger Rating Scale™ (AARS™) more

Aggression Questionnaire (AQ) more

Adolescent Psychopathology Scale™ (APS™) more

Beck Youth Inventories™ - Second more

Childhood Trauma Questionnaire (CTQ) more

Coping Responses Inventory (CRI) more

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Trauma Symptom Inventory™-2 (TSI™-2) more


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