Williams J G
School of Physical Education, Movement Science and Recreation, University of Liverpool, UK.
Percept Mot Skills. 1987 Dec;65(3):825-6. doi: 10.2466/pms.1987.65.3.825.
The effect of three observational strategies, namely, passive observation, enactive mediation, and delayed mediation, on the accuracy of imitating a modelled throwing action was assessed with a sample of 12-yr.-old schoolboys in a mixed factorial design. 9 boys were assigned to use one of the strategies to produce the pattern of arm movements displayed on a large video-monitor when the speed of the model's movements was varied at three levels. Accuracy of limb displacement and timing of limb movement relative to the model were the performance measures. The results indicated that limb displacement was most accurate when delayed mediation was used with the slowest display. The production of timing was most accurate when enactive mediation was used with the fastest display. Over-all, the use of the passive observation strategy provided the least accurate performance.
采用混合因子设计，以12岁男学生为样本，评估了三种观察策略（即被动观察、主动中介和延迟中介）对模仿模拟投掷动作准确性的影响。9名男孩被分配使用其中一种策略，在模型动作速度分为三个水平的情况下，模仿大型视频监视器上显示的手臂动作模式。肢体位移的准确性和相对于模型的肢体运动时间是表现指标。结果表明，当使用延迟中介且显示速度最慢时，肢体位移最准确。当使用主动中介且显示速度最快时，时间的产生最准确。总体而言，使用被动观察策略的表现最不准确。
