A Shah1, H Evans, N Parkash. 1. Imperial College School of Medicine, London, UK. a.shah@cxwms.ac.uk
Abstract
BACKGROUND: In recent years many instruments measuring aggressive and agitated behaviours among the elderly in a variety of settings have emerged. Individual instruments have only occasionally been compared with each other. METHOD: Some psychometric properties of three aggression/agitation scales on an acute assessment and admission psychogeriatric ward were examined. The correlation between the Rating Scale for Aggressive Behaviour in the Elderly (RAGE), the Cohen-Mansfield Agitation Inventory (CMAI) and the Brief Agitation Rating Scale (BARS) and their internal consistencies and test-retest and interrater reliabilities were measured. RESULTS: The RAGE was strongly correlated with the CMAI (rho = +0.73) and the BARS (rho = +0.72). The CMAI was strongly correlated with the CMAI (rho = +0.84). The internal consistency, as measured by Cronbach's alpha, was greater than 0.8 on all three scales. The test-retest and interrater reliability correlations were 0.75 or greater for all three scales (except the BARS interrater reliability correlation of 0.6). CONCLUSIONS: All three scales have good psychometric properties for use in acute admission assessment psychogeriatric wards.
BACKGROUND: In recent years many instruments measuring aggressive and agitated behaviours among the elderly in a variety of settings have emerged. Individual instruments have only occasionally been compared with each other. METHOD: Some psychometric properties of three aggression/agitation scales on an acute assessment and admission psychogeriatric ward were examined. The correlation between the Rating Scale for Aggressive Behaviour in the Elderly (RAGE), the Cohen-Mansfield Agitation Inventory (CMAI) and the Brief Agitation Rating Scale (BARS) and their internal consistencies and test-retest and interrater reliabilities were measured. RESULTS: The RAGE was strongly correlated with the CMAI (rho = +0.73) and the BARS (rho = +0.72). The CMAI was strongly correlated with the CMAI (rho = +0.84). The internal consistency, as measured by Cronbach's alpha, was greater than 0.8 on all three scales. The test-retest and interrater reliability correlations were 0.75 or greater for all three scales (except the BARS interrater reliability correlation of 0.6). CONCLUSIONS: All three scales have good psychometric properties for use in acute admission assessment psychogeriatric wards.
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