The authors investigated the impact of video speed on judging the duration of sport performance. In three experiments, they investigated whether the speed of video presentation (slow motion vs. real time) has an influence on the accuracy of time estimation of sporting activities (n₁ = 103; n₂ = 100; n₃ = 106). In all three studies, the time estimation was more accurate in real time than in slow motion, in which time was overestimated. In two studies, the authors initially investigated whether actions in slow motion are perceived to last longer because the distance they cycled or ran is perceived to be longer (n₄ = 92; n₅ = 106). The results support the hypothesis that the duration of sporting activities is estimated more accurately when they are presented in real time than in slow motion. Sporting officials’ judgments that require accurate time estimation may thus be biased when based on slow-motion displays.

作者调查了视频速度对判断运动表现持续时间的影响。在三个实验中，他们研究了视频呈现的速度（慢动作与实时）是否对体育活动时间估计的准确性有影响（n ₁  = 103；n ₂  = 100；n ₃  = 106）。在所有三项研究中，实时时间估计比慢动作中的时间估计更准确，慢动作中的时间被高估。在两项研究中，作者最初调查了慢动作动作是否会被认为持续更长时间，因为他们骑自行车或跑步的距离被认为更长（n ₄  = 92；n ₅ = 106）。结果支持这样一种假设，即体育活动的持续时间在实时呈现时比在慢动作中更准确。因此，当基于慢动作显示时，需要准确时间估计的体育官员的判断可能会有偏差。