Items

N

Mean

Std. deviation

F

Sig

Age

20 - 30 years old

64

74.7559

12.21532

1.607

0.207

31 - 40 years old

10

78.4375

7.13371

More than 40

7

67.4107

20.55996

Education

Diploma

21

72.7679

12.30881

1.801

0.172

Bachelor

57

74.5614

12.89064

Master

3

87.5000

0.00000

Experience

5 years or less

53

75.9434

10.28414

0.895

0.413

6 - 15 years

18

72.2222

14.96353

Above 15 years

10

71.5625

19.17629

Training course

Yes

70

75.3125

12.15733

1.751

0.190

No

11

69.8864

15.57948