Table 2.

Testing time-on-task in terms of trial types

Variable	Coefficient (as  % difference)
	Model 5	Model 6	Model 7†	Model 8
In terms of trial types
Foreperiod
=1.0 s	5.25***	4.91***	7.16***	7.22**
=1.5 s	−2.42
≥1.5 s		−4.97
≥2.0 s	−4.04
Hazard rate
=high	37.79***	36.41***	40.75***	49.19***
Time-on-task trial type
{Z = late}				−7.35
Interactions
{Z = late} × {HR = high}	−1.24**	−1.12*	−.97**
{Z = late} × {HR = low}	−12.49*	−12.56*	−12.72*

Estimated differences were given by GLIRT coefficients represented as percentage change in v value (perceptual processing speed) per explanatory variable unit increase on average across subjects and sessions. Time-on-task is represented in terms of early and late trial types

^†Model 7 wins the model selection. Further nesting to Model 8 was rejected, p < .005

*p < .05, **p < .01, ***p < .005