|
Group & Difficulty
|
Group*
|
Mdiff
|
p†
|
|
Pretest
|
|
|
|
|
|
Forehand Clear
|
1
|
2
|
-.12
|
.68
|
| |
1
|
3
|
.55
|
.34
|
| |
1
|
4
|
.16
|
.68
|
| |
2
|
3
|
.67
|
.29
|
| |
2
|
4
|
.28
|
.62
|
| |
3
|
4
|
-.39
|
.51
|
|
Backhand Clear
|
1
|
2
|
.28
|
.42
|
| |
1
|
3
|
.21
|
.46
|
| |
1
|
4
|
.16
|
.83
|
| |
2
|
3
|
-.07
|
.72
|
| |
2
|
4
|
-.12
|
.86
|
| |
3
|
4
|
-.05
|
.91
|
|
Posttest
|
|
|
|
|
|
Forehand Clear
|
1
|
2
|
2.44*
|
.014
|
| |
1
|
3
|
-.01
|
.89
|
| |
1
|
4
|
.21
|
.81
|
| |
2
|
3
|
-2.45*
|
.014
|
| |
2
|
4
|
.76
|
.80
|
| |
3
|
4
|
|
|
|
Backhand Clear
|
1
|
2
|
.51
|
.26
|
| |
1
|
3
|
-1.94*
|
.022
|
| |
1
|
4
|
.59
|
.25
|
| |
2
|
3
|
-2.45*
|
.018
|
| |
2
|
4
|
-.33
|
.31
|
| |
3
|
4
|
2.53*
|
.018
|
|
Retention
|
|
|
|
|
|
Forehand Clear
|
1
|
2
|
2.18*
|
.016
|
| |
1
|
3
|
-.16
|
.78
|
| |
1
|
4
|
2.95*
|
.008
|
| |
2
|
3
|
-2.34*
|
.014
|
| |
2
|
4
|
.77
|
.21
|
| |
3
|
4
|
3.11*
|
.001
|
|
Backhand Clear
|
1
|
2
|
.58
|
.24
|
| |
1
|
3
|
-1.87*
|
.026
|
| |
1
|
4
|
.65
|
.22
|
| |
2
|
3
|
-2.45*
|
.028
|
| |
2
|
4
|
.07
|
.63
|
| |
3
|
4
|
2.52*
|
.27
|
Abbreviations:
Group 1 = positive feedback
and correct cues; Group 2
= error cues; Group 3 = positive feedback, correct and
error cues; Group 4 = control
group. *
= significant mean difference, p<.05. †
= bonferroni correction.
|