Table 8.

Eye-movement measures computed by the proposed BIT algorithm and manufacturer algorithm for the DOVES data

Measure	Statistic	Overall
Number of fixations	Mean difference	4.13
	MAD	4.43
	MAPD	.27
	Correlation	.23
Fixation durations (ms)	Mean difference	–172.54
	MAD	175.57
	MAPD	.71
	Correlation	.09
Saccade size (°)	Mean difference	–.74
	MAD	1.01
	MAPD	.51
	Correlation	.39

Note: The reported statistics are: mean difference: the overall mean for the eye-movement measure in question, computed using individual specific velocity thresholds based on one eye minus the overall mean computed using the algorithm recommended by the manufacturer and used in the DOVES database; MAD Mean absolute deviation of the measures computed using the proposed algorithm and the ones reported in the DOVES database; MAPD Mean absolute percentage deviation of the measures computed using the proposed algorithm and the ones reported in the DOVES database; Correlation Correlation coefficient of the measures computed by the proposed algorithm and the ones reported in the DOVES database