Modified Overt Aggression Scale: Difference between revisions

Revision as of 06:19, 29 March 2022

Revision as of 03:22, 30 November 2022

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The '''Modified Overt Aggression Scale''' ('''MOAS)''') is a four-part behavior rating scale used to evaluate and document the “frequency and severity” of aggressive episodes.<ref name=":0">Huang, H. C., Wang, Y.-T., Chen, K. C., Yeh, T. L., Lee, I. H., Chen, P. S., … Lu, R. B. (2009). The reliability and validity of the Chinese version of the Modified Overt Aggression Scale. ''International Journal of Psychiatry in Clinical Practice'', ''13''(4), 303–306.</ref>  The rating scale is made up of four categories; verbal [[aggression]], aggression against objects, aggression against self, and aggression against others.<ref name=":0" /> Each category consists of five responses, which over time can track the patient's aggressive behavior. The MOAS is one of the most widely used measures for violence and aggression.<ref name=":1">Harris, S. T., Oakley, C., & Picchioni, M. (2013). Quantifying violence in mental health research. ''Aggression and Violent Behavior,'' ''18''(6), 695-701. {{doi|10.1016/j.avb.2013.07.022}}</ref>

The scale was originally intended for use by physicians in a clinical setting, but parents may also use it to track aggressive behaviors in their children over time. It is particularly helpful in assessing aggressive behaviors in patients with [[traumatic brain injury]] (TBIs).

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There were a few problems with the study conducted in China to test reliability and validity. The participants were psychiatrists familiar with the scale, so their pre-existing knowledge could have skewed the results. The study was conducted on a small number of people, meaning its results cannot be generalized to the whole population.<ref name=":0" /> These factors contributed to a limited and specific [[Sampling (statistics)|sample size]] that may have altered the results of this study, questioning the accuracy of the reliability and validity.

The study conducted about people with IDs had minor limitations. Their standards of autistic traits were based on clinical information, instead of standard measures set by the [[Autism Diagnostic Interview|Autism Diagnostic Interview-Revised]].<ref name=":2" /> Based on the large sample size of over 2,000 people though, it is not considered a major complication.{{Psychology sidebar}}

== See also ==