(I) years of service

(J) years of service

Mean Difference (I-J)

Std. Error

Sig.

95% Confidence Interval

Lower Bound

Upper Bound

1 - 10

11 - 20

0.225

0.747

0.990

−1.719

2.170

21 - 30

1.368

0.975

0.500

−1.168

3.905

31 - 40

2.254

0.948

0.087

−0.213

4.722

11 - 20

1 - 10

−0.225

0.747

0.990

−2.170

1.719

21 - 30

1.142

0.885

0.571

−1.160

3.446

31 - 40

2.028

0.856

0.088

−0.198

4.256

21 - 30

1 - 10

−1.368

0.975

0.500

−3.905

1.168

11 - 20

−1.142

0.885

0.571

−3.446

1.160

31 - 40

0.886

1.060

0.838

−1.873

3.645

31 - 40

1 - 10

−2.254

0.948

0.087

−4.722

0.213

11 - 20

−2.028

0.856

0.088

−4.256

0.198

21 - 30

−0.886

1.060

0.838

−3.645

1.873