Table 2.

Testing issues identified by the examiner.

Test	Issue
Four-finger tapping	Of the 36 patients, 15 (42%) did not perform the test as intended because of physical difficulties (rheumatoid arthritis, fractures, or arthrosis) or misunderstanding of instructions; 3 patients did not comprehend how to use the keypad and instead tried to perform the test on the screen of the tablet.
Stroop test	A yellow button was perceived as light green by 2 patients.
Block design test	One patient did not understand when the test started.
Geriatric Depression Scale	Two patients gave a wrong answer to 1 question. Once answered it was not possible to correct.
One-finger tapping	One patient performed all tests with the left hand. One patient needed extra instructions from the examiner regarding that the buttons were supposed to be tapped and not to drag the finger between buttons.