TABLE 2.
Descriptions of the tests in the digital cognitive test battery and the differences from pen-and-paper versions.
| Test | Description | Difference from pen-and-paper version | |
| 1. | Trail-Making Test Aa | Participants connect circles labeled 1 to 25 as fast as possible | Drawing is done on an iPad; Automated scoring |
| 2. | Trail-Making Test Ba | Participant alternately connect circles containing letters (A–H) and numbers (1–13) as fast as possible | Drawing is done on an iPad; Automated scoring |
| 3. | Digit span forward | Participants verbally repeat back digit strings of increasing length | Automated verbal stimulus presentation; Automated scoring |
| 4. | Digit span backward | Participants verbally repeat back digit strings of increasing length in reverse order | Automated verbal stimulus presentation; Automated scoring |
| 5. | COWAT | Over three trials, participants name as many (Dutch) words starting with a “D”, “A”, and “T”. | - |
| 6. | CFT, category ‘animals’ | Participants name as many words that fall in the category ‘animals’ | − |
| 7. | Stroop color-naminga | Participants name the color in which congruent color-words are presented as fast as possible | Digital stimulus presentation |
| 8. | Stroop interferencea | Participants name the color in which incongruent color-words are presented as fast as possible | Digital stimulus presentation |
| 9. | RAVLT learning trials | Over five learning trials, participants verbally repeat back as many words as possible from a fixed word list containing 15 items | Automated verbal stimulus presentation |
| 10. | RAVLT delayed recall | 10–20 min after completion of the learning trials, participants verbally repeat back as many words as possible from the original word list | Automated verbal stimulus presentation |
| 11. | ROCFT copy | Participants are presented with a complex figure and are asked to copy it | Drawing is done on an iPad |
| 12. | ROCFT immediate recall | Participants draw the complex figure from memory | Drawing is done on an iPad |
| 13. | Star-Cancellation Testa | Participants cross out all the star stimuli in a field containing distractors | Digital stimulus presentation; Drawing is done on an iPad; Automated scoring |
| 14. | O-Cancellation Testa | Participants cross out all the O stimuli in a field containing distractors | Digital stimulus presentation; Drawing is done on an iPad; Automated scoring |
| 15. | Clock Drawing Test | Participants draw a clock from memory with the hands indicating 10 past 11 | Drawing is done on an iPad |
| 16. | Card Sorting Test | Participants match stimulus cards containing various shapes in different numbers and colors according to implicit (and changing) sorting rules | Digital stimulus presentation; Automated scoring |