Agitation in older persons is a major problem for the agitated individual and those around him/her. French-language measures of agitation with demonstrated validity and reliability are necessary for research and interventions in the French-speaking community. The goal of this study is to verify the reliability and validity of the “Inventaire d'agitation de Cohen-Mansfield” (IACM), a French version of the Cohen-Mansfield Agitation Inventory. The IACM measures the frequency of 29 agitated behaviours during a two-week period. Ninety-nine residents of a long-term care facility participated in this study. Results demonstrate the inter-rater reliability (r = .72), test-retest reliability (r = .72), internal consistency (Cronbach's alpha from .75 to .77), concurrent validity (r = .74) and construct validity (all r are significant, p < .05) of the IACM.
