Items

N

Mean

Std. deviation

F

Sig

Age

20 - 30 years old

64

87.6585

12.33539

14.294

0.000

31 - 40 years old

10

63.4783

21.95598

More than 40

7

77.6398

10.54614

Education

Diploma

21

76.1215

20.45286

3.620

0.031

Bachelor

57

86.6260

13.28288

Master

3

84.0580

0.00000

Experience

5 years or less

53

86.9292

12.35483

3.276

0.043

6 - 15 years

18

78.9050

23.73723

Above 15 years

10

76.0870

9.88274

Training course

Yes

70

84.7205

15.78504

1.740

0.191

No

11

77.9974

15.22523