Table 1. Descriptive statistics of the outcome and self confidence scores. Group & Difficulty Measure Performance outcome Self confidence scores M SD Range M SD Range Group A Correction Cue Forehand Clear Pretest 31.93 3.23 30-35 5.48 0.54 4-6 Posttest 37.81 1.27 35-40 8.64 0.69 5-9 Retention 37.50 1.03 34-39 8.33 0.72 6-9 Backhand Clear Pretest 16.75 1.34 14-18 5.09 0.88 3-7 Posttest 23.06 1.12 20-25 5.65 0.74 3-7 Retention 22.50 1.09 20-25 5.63 0.71 3-7 Group B Error Cue Forehand Clear Pretest 32.75 2.69 29-34 5.60 0.73 4-6 Posttest 38.18 0.98 35-38 6.20 0.43 4-7 Retention 37.56 1.09 34-38 6.15 0.41 4-8 Backhand Clear Pretest 15.90 1.02 13-17 4.81 0.59 3-7 Posttest 21.85 1.16 19-25 5.14 0.57 3-8 Retention 21.31 2.02 19-24 5.05 0.51 3-8 Group C Error + Correction Cue Forehand Clear Pretest 30.50 1.21 27-34 4.93 0.69 3-8 Posttest 34.37 0.71 29-37 8.65 0.52 6-9 Retention 34.00 0.89 30-37 8.49 0.56 5-9 Backhand Clear Pretest 16.00 1.31 14-18 4.88 0.63 3-6 Posttest 27.50 1.71 24-29 7.59 0.65 4-9 Retention 26.75 2.08 25-29 7.50 0.61 4-9 Group D Control Group Forehand Clear Pretest 32.10 1.32 28-33 5.32 0.58 4-6 Posttest 32.50 0.84 29-34 5.44 0.64 4-7 Retention 32.43 1.06 29-33 5.38 0.49 4-6 Backhand Clear Pretest 16.55 1.46 13-17 4.93 0.61 3-6 Posttest 16.80 1.82 13-18 5.06 0.67 3-7 Retention 16.69 1.33 14-18 4.98 0.59 3-6