Impact of Driver Age and Experience in Software Usage on Driving Safety and Usability of Car-Sharing Software

Table 6

Descriptive statistics of frequency and percentage of driving error among different ages and experience levels.

Frequency		0.00	1.00	2.00	4.00	5.00	z
Without operating car-sharing software	Old	10 (41.7%)	12 (50.0%)	2 (8.3%)	Null	Null	−3.015	0.003
	Young	20 (83.3%)	4 (16.7%)	0 (0.0%)	Null	Null
T1 task	Old	8 (33.3%)	8 (33.3%)	4 (16.7%)	3 (12.5%)	1 (4.2%)	−2.504	0.012
	Young	14 (58.3%)	10 (41.7%)	0 (0.0%)	0 (0.0%)	0 (0.0%)
T1 task	Experienced	14 (58.3%)	10 (41.7%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	−2.504	0.012
	Inexperienced	8 (33.3%)	8 (33.3%)	4 (16.7%)	3 (12.5%)	1 (4.2%)