Table 1.

Sample characteristics.

Variables	Frequency (N)	Percentage	Average
Gender
Male	295	78.9	1.21
Female	79	21.1
Total	374	100
Age
<21	4	1.1	5.47
21–25	6	1.6
26–30	15	4.0
31–35	34	9.1
36–40	131	35
41–45	115	30.7
46–50	48	12.8
>50	21	5.6
Total	374	100
Experience
≤ 1	8	2.1	4.04
2–5	22	5.9
6–9	88	23.5
10–13	129	34.5
14–17	82	21.9
>17	45	12.0
Total	374	100
Education
Intermediate	15	4.0	2.08
Graduation	315	84.2
Master/Doctorate	44	11.8
Total	374	100