휴대폰 동영상 피드백: 학습효과를 최대화하기 위해 어떻게 제공되어야 하는가? = Mobile Phone Video Feedback: How Should It Be Delivered to Maximize Motor Learning Effect?

국문 초록 (Abstract)

동영상 피드백의 효과를 조사한 선행연구들의 결과에 따르면 동영상 피드백이 긍정적인 학습효과를 발생시키기 위해 학습자에게 단독으로 제공되어서는 안 되고 주의집중 단서, 오류수정 정보, 전문가 모델 동영상 등과 함께 결합되어 제공되어야 하는 것으로 밝혀졌다. 본 연구의 목적은 운동학습 효과를 극대화하기 위해 동영상 피드백을 어떻게 제공해야 하는지 규명하기 위해 위 요인들의 결합된 효과를 조사 하였다. 구체적으로 선행연구들이 가장 효율적인 동영상 피드백 제공방법으로 제시한 ‘오류수정 정보+학습자 동영상’ 제공조건에 언어적 주의집중 단서와 전문가 모델 동영상이 부가될 때의 학습효과를 조사하였다. 40명의 피험자들은 네 가지 동영상 피드백 제공집단으로 나누어 땅볼 인사이드 축구 패스를 연습하였다. 24시간 후에 실시된 파지검사 결과, ‘오류수정 정보+학습자 동영상’ 조건에 주의집중 단서가 부가되었을 때 학습효과는 다르게 나타나지 않았다. 그러나 전문가 모델 동영상이 추가로 제공되었을 때 학습효과는 가장 우수했다. 부가된 전문가 모델의 동영상은 학습자에게 오류탐지를 위한 견본으로 사용된 것처럼 보인다. 또한 전문가 모델 동영상은 관찰학습 효과와 신체분절의 상대동작 정보를 제공하여 동작 폼의 습득을 더 용이하게 하는 것처럼 보인다. 그러나 동영상 피드백에 오류수정 정보가 결합될 경우 주의집중 단서의 추가적 제공은 불필요 한 것처럼 보인다.

다국어 초록 (Multilingual Abstract)

The purpose of this study was to examine how mobile phone video feedback should be delivered to learners to maximize the motor learning effect. Specifically, we investigated the effect of video feedback(VF) combined with error-correcting information(EI), attention-focusing cues(AC) and expert model video(EMV). The to-be-learned task was an inside-of-the-foot soccer accuracy pass. The performance score represented kicking form and pass accuracy. Forty-six female participants were randomly assigned to one of four experimental groups according to what factors were combined with a video feedback; 1) control, 2) EI+VF, 3) EI+AC+VF, and 4) EI+AC+EMV+VF groups. All participants practiced 10 trials without any information during a practice phase and 40 trials with video feedback during an acquisition phase. A retention test was administered 24 hours later. The results indicated that all video feedback groups displayed better learning effect than the control group. The EI+AC+EMV+VF group exhibited better learning effect compared with other video feedback groups. These results suggest that the video feedback should be combined with EI+AC+EV to maximize learning effect. However, attention-focusing cues are redundant when error-correcting information was presented. Adding expert model video to video feedback seems to facilitate the detection of movement error by providing a template for evaluating kinematic features of video feedback.

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