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Normative data for the Novaco Anger Scale from a non-clinical sample and implications for clinical use
J P Jones1, B A Thomas-Peter, A Trout
1Clinical Psychology Department, University of Birmingham, UK.
The British Journal of Clinical Psychology
|December 11, 1999
Summary
The Novaco Anger Scale provides normative data for non-clinical populations and accurately distinguishes between clinical and non-clinical individuals, supporting its use in anger assessment.
Area of Science:
- Psychological assessment
- Clinical psychology
- Anger management
Background:
- The Novaco Anger Scale (NAS) is a tool used to measure anger.
- Normative data are essential for interpreting scale scores in different populations.
- Understanding the scale's discriminative ability is crucial for clinical application.
Purpose of the Study:
- To establish non-clinical normative data for the Novaco Anger Scale.
- To evaluate the Novaco Anger Scale's capacity to differentiate between clinical and non-clinical groups.
Main Methods:
- A postal survey was conducted with a non-clinical sample of 212 NHS employees.
- A retrospective case-note analysis identified a clinical sample of 58 outpatient anger-management referrals.
- Both samples completed the Novaco Anger Scale.
Main Results:
- Descriptive data were generated for both clinical and non-clinical samples.
- t-score conversions were developed using the non-clinical normative data.
- Discriminant function analysis showed the Novaco Anger Scale achieved 94% accuracy in classifying participants.
Conclusions:
- The Novaco Anger Scale effectively discriminates between clinical and non-clinical populations.
- The findings support the validity and clinical utility of the Novaco Anger Scale in assessment.