Modified Overt Aggression Scale.
MOAS
- What it measures
- observed aggressive behaviour - Verbal Aggression, Aggression Against Property, Autoaggression (self-directed), Physical Aggression; weighted total
- Length and format
- 4 categories x 5 severity levels (weighted). clinician/staff behavioural rating over a defined period; weighted category scores summed (clinician-rated/interview)
- Language versions
- several incl. ES, IT, ZH, PT; used internationally in forensic/psychiatric settings
- Normative data
- No normative data held in our reference library for this instrument. That is a statement about our library, not about the published literature.
- Licence
- open with attribution
Licence classification is a research judgement by the catalogue’s authors, not legal advice, and it can be out of date. Confirm terms with the copyright holder or publisher before using an instrument, especially for commercial use.
- Reference
- Kay, S. R., Wolkenfeld, F., & Murrill, L. M. (1988). Profiles of aggression among psychiatric patients: I. Nature and prevalence. Journal of Nervous and Mental Disease, 176(9), 539-546.
Choosing between this and the alternatives
We do not deliver this instrument. If you are selecting a measure for a research programme, a national survey or an assessment product, and the question is which instrument, in which language, against which norms and under which licence, that is the work we do.
Talk to us about instrument selection