[Activities of daily living and the speed/power components of test performance]

By using the Nuremberg Gerontopsychological Inventory (NAI) two hypothesis have been tested on N = 329 subjects in the age between 55 and 93: a) Test performance of older people can be reduced to a speed-/power-model, b) speed tests are more apt to predict activities of daily living than power tests are. Both assumptions can be confirmed. A two-factorial speed/power-solution can be shown. To predict changes in the activities of daily living an advance in using speed-dependent tests is turned out.