The Psychology of Human-Computer Interaction
The Psychology of Human-Computer Interaction
Contributions to engineering models of human-computer interaction. (volumes i and ii)
Contributions to engineering models of human-computer interaction. (volumes i and ii)
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Three experiments compared the speed and accuracy of item selection from two types of hierarchical pop-up menus (click-open & walking). These menus are perceptually equivalent, but require very different action sequences to make selections from them. Two ways in which the action sequences differ involve (1) the amount of spatial constraint in the movement path, and (2) the position of the mouse button during the movement. The present results show that selection from click-open menus is faster and less error-prone than selection from walking menus. This disagrees with the Keystroke-Level Model of Card, Moran, and Newell (1983).