. 2008 Sep 1;7(3):371–378.

Table 3.

Comparisons of all self confidence group means and skills for three measurement times.

Group & Difficulty	Group^*		M_diff	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.