期刊名称：Facta Universitatis : Series Physical Education and Sport
印刷版ISSN：1451-740X
出版年度：2011
卷号：9
期号：01
出版社：University of Niš
摘要：. Though it is common coaching practice to provide augmented feedback after poor performances, recent literature suggests that allowing individuals to receive feedback when they request it (a self-controlled schedule) enhances motor learning (Chiviacowsky & Wulf, 2002, 2005). The purpose of this study to compare the effect of feedback after good, poor, good-poor trials, and the self-control control condition in an acquisition and learning of force production task. To achieve this goal, 48 subjects were divided into four groups of feedback into a good, poor, good-poor trial and self–control feedback group. All four groups produced 10 kg force in 12 blocks of 6 trials (12×6). All of the participants were informed of their results (KR or ‘knowledge of the results') during two trials in each 6-trial block. One group (KR good) received KR for the two most effective trials, another (KR poor) received KR for the two least effective trials, a third group received KR for one of the most effective and least effective trials, and the self control group was provided with feedback whenever they requested it, but only for two trials. We used a two-way ANOVA during the acquisition stage and a one-way ANOVA during the retention test. There were no inter-group differences during the acquisition phase. The results indicated that under experimenter-controlled conditions, learning is facilitated if feedback is provided after a good trial rather than a poor or good-poor trial. In addition, the feedback schedule based on a coach-oriented method is more effective than one based on a subject-oriented method. The findings are interpreted as evidence for the motivational function of feedback. The good group had a better performance than the self–control condition group. Overall, we can conclude that the given feedback after a good trial is very effective for skill learning. Hence, this approach can best be used as a feedback method for athletes and coaches.
