Furthermore, data for task completion times show an
improvement between 18% and 33%. These values are even
better than predicted by the Keystroke Level Model
Analyzer Tool from Karousos et al. [20] that predicts
improvements between 7% and 23%. Eye tracking data also
indicate that participants could fill in the improved forms
more efficiently as they needed fewer fixations and
saccades [13, 16]. This indicates that participants needed