Table 3. Pre- and posttest comparisons of the overall stroke effect by group.
Variables EG (M±SD, N=24) CG (M±SD, N=24)
Pre- Post- p-value Pretest Posttest p-value
Large area 12.10±5.0 23.10±3.05 0.000** 13.60±4.56 16.40±2.16 0.003**
Small area 0.50±0.13 4.15±1.09 0.000** 0.85±1.14 2.00±0.79 0.001**
Out 15.45±2.51 10.85±1.43 0.000** 14.10±3.16 11.00±1.74 0.001**
Net 2.10±0.52 2.05±0.40 0.840 4.05±3.60 4.20±2.13 0.876
Miss 1.00±1.01 0.35±0.59 0.035* 0.75±1.12 0.50±0.21 0.371
Racket-edge stroke 1.05±1.23 0.25±0.91 0.030* 1.50±1.07 0.40±0.14 0.005**
Ball speed 25.38±2.55 26.86±2.56 0.000** 26.16±2.54 26.90±2.05 0.001**
EG = Experimental group, CG = Control group
* p < 0.05
** p < 0.01.