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Validation of the Cohen-Mansfield Agitation Inventory Observational (CMAI-O) tool

Alys W Griffiths1, Christopher P Albertyn2, Natasha L Burnley1

  • 1Centre for Dementia Research, Leeds Beckett University, Leeds, UK.

International Psychogeriatrics
|April 11, 2019
PubMed
Abstract

Insights

Agitation in dementia is common. A new observational tool, the Cohen-Mansfield Agitation Inventory-Observational (CMAI-O), shows promise for accurate measurement, potentially improving care quality for individuals with dementia.

Area of Science:

  • Gerontology
  • Psychiatry
  • Clinical Psychology

Background:

  • Agitation is a frequent behavior in individuals with dementia.
  • The Cohen-Mansfield Agitation Inventory (CMAI) is a proxy-reported scale, susceptible to bias and accuracy issues.
  • There is a need for an observational measure of agitation comparable to the CMAI.

Purpose of the Study:

  • To develop and validate an observational version of the CMAI (CMAI-O).
  • To assess the CMAI-O's validity as an alternative or complementary measure for agitation in dementia.

Main Methods:

  • Development of the CMAI-O, an observational tool.
  • Validation study conducted in 726 residents with dementia across 50 care homes in England.
  • Observational measures (CMAI-O, PAS) completed by blinded researchers; staff proxies completed other measures.

Main Results:

  • The CMAI-O demonstrated adequate internal consistency (α = .61).
  • Strong criterion validity was found with the PAS (r = .79, p < .001).
  • The CMAI-O showed incremental validity in predicting quality of life and discriminant validity from apathy measures.

Conclusions:

  • The CMAI-O is a valuable research tool for objective agitation assessment in dementia care settings.
  • Utilizing the CMAI-O alongside the CMAI can enhance the understanding of agitation in dementia.
  • This observational measure may improve the accuracy of agitation assessment in clinical research and practice.
Keywords:
agitationcare homesdementiaobservationproxy bias

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