Characterizing How Interface Complexity Affects Children's Touchscreen Interactions
summary
Study collects touch and gesture data from 30 adults and 30 children and runs 16,000 touch events and 14,400 gestures through the PR recognizer from Vatavu et al (ICMI 2012). Holdovers are 1.7% of touches with 92% by children, and visual salience in complex apps cuts holdovers but raises response time and lowers touch pressure/size. Small targets and edge padding double misses, and there is no effect of complexity on gesture recognition, though young children need many training examples.
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