Age (i)

Age (j)

Mean Difference

Significance (p)

18 - 19

20 - 21

3.603

0.329

22 - 23

3.977

0.268

24 and older

7.978*

0.026

20 - 21

18 - 19

−3.603

0.329

22 - 23

0.374

0.993

24 and older

4.375

0.209

22 - 23

18 - 19

−3.977

0.268

20 - 21

−0.374

0.993

24 and older

4.000

0.306