Table 4.

Summary of the effects of driving duration.

Parameters	Alert group (F-value)	SD group (F-value)
α	1.660	1.110
β	3.337*	0.427
θ	3.106*	0.829
(θ + α)/β	6.652**	3.324*
θ/β	5.466**	2.934*
θ/(α + β)	4.609**	2.238
(θ + α)/(α + β)	5.271**	2.554

**p < 0.010; *p < 0.050.