抄録
The modified Attention Distribution Test (mADT) is a tool for evaluating subjects’ fatigue status, which
is a simple computer program with character-based user interface (CUI). The test records times between
mouse-click on numerical numbers randomly placed on 6 by 6 matrix in ascending order.
This study considered to upgrade the mADT with graphical user interface (GUI). Implementing GUI
has following benefits, a) Enriched look and feel, such as click feeling or noticeable warning for wrong
response, reduces mistakes caused by poor usability. b) The examiner can select subjects from prepared
drop-down list. This could be a strong merit when examiner intends to have many subject take the test.
To test the possible impacts of upgrading the mADT on subjects’ response characteristics, 8 participants
who felt no fatigue took the original and GUI version of the test for 5 consecutive days. The 25 %iles
value of reaction times for each number showed no statistical significance between original and GUI
version of the test except for the second and final days. The quick response (QR) index showed significant
main effect of the test versions, suggesting larger QR for the GUI version of the test. Results suggest
that upgrading the mADT reduced the workload of taking the test.
