Novaco Anger Scale and Provocation Inventory nas-pi

For: Tells you how particular individuals experience anger and what kind of situations provoke it
Reading Level: 9 to 84 years
Format: Paper-and-Pencil; PC Based Software
Length: 25 minutes
Scoring: Hand Scored; Computer Scored



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Paper Forms and Hand Scoring Materials

Test forms, response booklets and scoring reference manuals.

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PC Software

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Includes 25 NAS-PI AutoScore Test Forms; Manual.
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NAS-PI AutoScore Test Form (25)

Pack of 25.
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NAS-PI CD for Computer Scoring Only

PC with Windows 98, ME, XP, or 2000. (For Vista compatibility, call PAA). Each CD is good for 25 uses. 1 CD.
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NAS-PI PC Answer Sheet (pad of 100 sheets)

For use with the NAS-PI CD. Pad of 100 sheets.
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Raymond W. Novaco, Ph.D.


Initially developed in conjunction with the MacArthur Foundation Network on Mental Health and Law, the NAS-PI helps clinicians and researchers evaluate the role of anger in various psychological and physical conditions. Brief and easy-to-administer, this self-report questionnaire is an excellent way to assess anger in clinical, community and correctional settings.

The NAS-PI is composed of two parts: The Novaco Anger Scale (60 items), which tells you how an individual experiences anger; and the Provocation Inventory (25 items), which identifies the kind of situations that induce anger in particular individuals. The entire questionnaire may be completed in just 25 minutes by anyone who can read at a fourth-grade level. (It may also be administered to clients who are mentally disordered or developmentally delayed, though items may have to be read to these individuals).

The NAS-PI produces the following scores:

Novaco Anger Scale

  • Total –  General inclination toward anger reactions, based on Cognitive, Arousal, and Behaviour subscales.
  • Cognitive –  Anger justification, rumination, hostile attitude and suspicion.
  • Arousal – Anger intensity, duration, somatic tension and irritability.
  • Behaviour – Impulsive reaction, verbal aggression, physical confrontation and indirect expression.
  • Anger Regulation – Ability to regulate anger-engendering thoughts, effect self-calming and engage in constructive behaviour when provoked.

Provocation Inventory

  • Total – A reflection of five content areas: disrespectful treatment, unfairness, frustration, annoying traits of others and irritations.

In addition, a validity index helps identify inconsistent responding, whether intentional or inadvertent.

The NAS-PI may be administered as a whole, or the two parts can be used independently. It may be hand or computer scored. Normative data are based on an age-stratified sample of 1,546 individuals, from 9 to 84 years of age. Separate norms are provided for preadolescents and adolescents (9 to 18) and adults (19 and older).

The test has shown good test-retest reliability in non-clinical, clinical, and correctional samples. Studies reported in the Manual demonstrate that the NAS-PI can distinguish between assaultive and non-assaultive forensic inpatients and predict assaultive behaviour in institutions as well as violent behaviour in the community following hospital discharge.

The NAS-PI is an excellent way to assess anger reactivity, anger suppression and change in anger disposition.

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