We can reliably build “second generation” intelligent computer tutors that are approximately half as effective as human tutors. This paper evaluates two interface enhancements...
We introduce an educational toy, called curlybot, as the basis for a new class of toys aimed at children in their early stages of development – ages four and up. curlybot is an ...
Phil Frei, Victor Su, Bakhtiar Mikhak, Hiroshi Ish...
Usability comprises the aspects effectiveness, efficiency, and satisfaction. The correlations between these aspects are not well understood for complex tasks. We present data from...
Through a study of web site design practice, we observed that web site designers design sites at different levels of refinement—site map, storyboard, and individual page— and ...
James Lin, Mark W. Newman, Jason I. Hong, James A....
Pen-based user interfaces are becoming ever more popular. Gestures (i.e., marks made with a pen to invoke a command) are a valuable aspect of pen-based UIs, but they also have dra...
Allan Christian Long Jr., James A. Landay, Lawrenc...