결과지식 제시시기에 따른 운동기술 학습효과 = The Effect of Time of KR Provision on Motor Skill Learning

다국어 초록 (Multilingual Abstract)

Two experiments are reported in which the relative effectiveness of time of KR provision on skill learning is investigated. Subjects were tested with a 300msec ballistic timing task in a 3×20(KR condition×block) factorial design with repeated measures on block(Exp.Ⅰ) and in a 4×16(KR condition×block) factorial design with repeated measures on block(Exp. Ⅱ), both within transfer designs. In Exp. Ⅰ, the results showed that performance effects(decrements of timing error) were largest in the group where KRs were provided in the middle part of the practice sequence. A significant transfer effect was observed in the 400msec condition, but not in the 200msec condition. In Exp. Ⅱ, analyses showed that the performance effect in practice phase was largest in the condition where KR was progressively converged on the middle part of the whole practice sequence. The results, taken altogether, suggested that; 1) time of KR provision in the practice sequence is not a significant learning variable; 2) the effect of KR on performance is most significant when KRs are provided in the later part(not early part) of the whole practice sequence.