Validity of Mental Workload Measures in a Driving Simulation Environment

Table 1

Stratification of the sample used in this study.

Layer	Age (years)	Gender	Educational Level	Relative incidence	Sample size
1	20-24	Male	Low	0.20.4291	9
2		Female		0.20.5711	11
3	25-40	Male	Low	0.30.4830.5	7
4			High	0.30.4830.5	7
5		Female	Low	0.30.5170.5	8
6			High	0.30.5170.5	8
7	41-64	Male	Low	0.30.4910.5	7
8			High	0.30.4910.5	7
9		Female	Low	0.30.5090.5	8
10			High	0.30.5090.5	8
11	≥65	Male	Low	0.20.6740.5	7
12			High	0.20.6740.5	7
13		Female	Low	0.20.3260.5	3
14			High	0.20.3260.5	3

Note: low = less than or equal to high school degree; high = higher than high school degree.