Choose popovers over buttons for iPad questionnaires

Authors:
Kevin Gaunt;Felix M. Schmitz;Markus Stolze
Affiliations:
Institute for Software, University of Applied Science Rapperswil, Rapperswil-Jona, Switzerland;Institute of Medical Education, Medical Faculty of the University of Bern, Bern, Switzerland;Institute for Software, University of Applied Science Rapperswil, Rapperswil-Jona, Switzerland
Venue:
INTERACT'11 Proceedings of the 13th IFIP TC 13 international conference on Human-computer interaction - Volume Part II
Year:
2011

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Abstract

When designing questionnaires for iPad an important design decision is whether to use popover listings or button listings for representing singlechoice selections. In this paper we examined effects of each listing method on performance and subjective preferences when performing a non-linear selection task. A quantitative experiment (N = 39) with the two within-factors (1) listing method (popover versus button) and (2) task completion time (15s versus 7s versus 5s) was conducted. Results show subjects performing significantly better when using popovers, which they also strongly preferred. We attribute this to lower extraneous cognitive load and shorter forms, ultimately requiring less scrolling. Results also show the expected effect of task completion time on performance: the longer the allotted time, the higher the test scores.