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Related Experiment Videos

The Attempted and Actual Assault Scale (Attacks).

Len Bowers1, Henk Nijman, Tom Palmstierna

  • 1Department of Mental Health and Learning Disability, City University, London, UK. L.Bowers@city-ac.uk

International Journal of Methods in Psychiatric Research
|September 13, 2007
PubMed
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The new Attempted and Actual Assault Scale (Attacks) shows promising psychometric properties for assessing inpatient assaults. Its severity scores correlate well with expert judgments, indicating reliability in violence research.

Area of Science:

  • Psychiatry
  • Psychometric Assessment
  • Violence Research

Background:

  • Inpatient assaults require accurate measurement tools.
  • Existing scales may have limitations in capturing assault details.

Purpose of the Study:

  • To evaluate the psychometric properties of the Attempted and Actual Assault Scale (Attacks).
  • To assess the inter-rater reliability and validity of the Attacks scale.

Main Methods:

  • A videotape of interpersonal assaults was created using television clips.
  • 22 international experts rated assaults using the Attacks scale and the MOAS scale.
  • Inter-rater reliability was calculated using intra-class correlation coefficients.

Main Results:

Related Experiment Videos

  • The Attacks scale demonstrated good inter-rater reliability (ICC = 0.70).
  • Attacks severity scores were significantly associated with expert severity judgments (rho = 0.70).
  • MOAS severity scores showed lower inter-rater reliability (ICC = 0.48).

Conclusions:

  • The newly developed Attacks scale exhibits promising psychometric properties.
  • Attacks appears to be a reliable and valid instrument for measuring inpatient assaults.
  • Further validation in clinical settings is warranted.