[Validity of the Behavior Observation Scale for Intramural Psychogeriatrics: a comparison with the BOP (Evaluation Scale Elderly Patients) and NOSIE-30 in a psychogeriatric assessment clinic for the elderly].

The Validity of the Dutch Behavior Rating Scale for Psychogeriatric Inpatients GIP was demonstrated in a study comparing it to well-known rating scales such as the BOP and NOSIE-30 (n = 195). The GIP has the additional advantage of specifically describing the emotional and affective characteristics of psychogeriatric patients. Interrater reliability (Cohen's kappa) of all three rating scales was modest, which might be explained by the type of setting: a short stay clinic for the elderly where rapid behavioural changes can occur. Using a regression analysis technique a new compact GIP dependency subscale was constructed showing excellent predictive value in relation to the more elaborate BOP dependency subscale.