Abstract
The Cornell scale is a 19-item clinician-administered scale of depression that uses information from interviews with both patients and their caregivers. The Cornell scale has been validated in demented patients. In this study, the Cornell scale was psychometically tested in nondemented geriatric subjects by administering it to 15 depressed patients, 15 patients with other psychiatric diagnoses, and 15 normal control subjects. The Cornell scale had high interrater reliability (Cohen's kappa = 0.74), internal consistency (Kuder-Richardson's coefficient = 0.98), and sensitivity, and correlated significantly (Spearman's r = 0.81) with Research Diagnostic Criteria psychiatric diagnoses associated with various intensity of depression. To our knowledge, the Cornell scale is the only depression-rating instrument that has been validated in both demented and nondemented geriatric subjects.
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