Characterizing How Interface Complexity Affects Children's Touchscreen Interactions.

Most touchscreen devices are not designed specifically with children in mind, and their interfaces often do not optimize interaction for children. Prior work on children and touchscreen interaction has found important patterns, but has only focused on simplified, isolated interactions, whereas most interfaces are more visually complex. We examine how interface complexity might impact childrenu0027s touchscreen interactions. We collected touch and gesture data from 30 adults and 30 children (ages 5 to 10) to look for similarities, differences, and effects of interface complexity. Interface complexity affected some touch interactions, primarily related to visual salience, and it did not affect gesture recognition. We also report general differences between children and adults. We provide design recommendations that support the design of touchscreen interfaces specifically tailored towards children of this age.