Age

Group

Mean

N**

Std. Deviation

P-Value

M^†

F^††

M^†

F^††

M^†

F^††

I

12.48

11.61

100

100

1.186

0.921

0.000^#

II

33.79

30.42

100

100

2.287

2.081

III

55.35

52.77

100

100

4.121

3.312