Abstract
Abstract The Cambridge Cognitive Examination (CAMCOG) is a concise neuropsychological test for the assessment of cognitive impairment in elderly people. It was designed specifically to assist in the diagnosis of dementia in an early stage. CAMCOG assesses a broad range of cognitive functions, as is required for the diagnosis of dementia, and it minimizes floor and ceiling effects by covering a range of item difficulty. We report here some psychometric properties of the CAMCOG in two stages of a population survey of people over the age of 75 years. Total score on the CAMCOG was found to have excellent internal reliability and test-retest reliability. the reliability of the individual subscales, which corresponded to different cognitive abilities, was also acceptable. Principal components analysis on the individual CAMCOG items revealed two easily interpretable factors, corresponding to general intelligence and memory. CAMCOG scores were very effective in differentiating between demented and nondemented ind...
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