June

November

Mean

SD

Mean

SD

F-value

Post-hoc

Softballs

6.4

2.9

6.8

2.9

F1: 12.15*

F2: 112.77*

F3: 0.60

June: Softballs < Tennis balls; Softballs: June < November

Tennis balls

7.5

3.2

8.2

3.5

November: Softballs < Tennis balls; Tennis balls: June < November