Examining Fitts' and FFitts' Law Models for Children's Pointing Tasks on Touchscreens

Julia Woodward, Jahelle Cato, Jesse Smith, Isaac Wang, Brett Benda, Lisa Anthony, J. Ruiz
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引用次数: 6

Abstract

Fitts' law has accurately modeled both children's and adults' pointing movements, but it is not as precise for modeling movement to small targets. To address this issue, prior work presented FFitts' law, which is more exact than Fitts' law for modeling adults' finger input on touchscreens. Since children's touch interactions are more variable than adults, it is unclear if FFitts' law should be applied to children. We conducted a 2D target acquisition task with 54 children (ages 5-10) to examine if FFitts' law can accurately model children's touchscreen movement time. We found that Fitts' law using nominal target widths is more accurate, with a R2 value of 0.93, than FFitts' law for modeling children's finger input on touchscreens. Our work contributes new understanding of how to accurately predict children's finger touch performance on touchscreens.
研究儿童在触屏上的指向任务的Fitts和FFitts定律模型
菲茨定律已经准确地模拟了儿童和成人的指向运动,但在模拟指向小目标的运动时就不那么精确了。为了解决这个问题,之前的工作提出了FFitts定律,它比Fitts定律更精确地模拟成人在触摸屏上的手指输入。由于儿童的触摸互动比成人更多变,所以菲茨定律是否适用于儿童尚不清楚。我们对54名儿童(5-10岁)进行了2D目标获取任务,以检验FFitts定律是否能准确地模拟儿童的触屏运动时间。我们发现,使用标称目标宽度的Fitts定律比使用FFitts定律在触摸屏上模拟儿童手指输入更准确,R2值为0.93。我们的工作为如何准确预测儿童手指在触摸屏上的触摸表现提供了新的理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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