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DIAGRAMS
2008
Springer

The Effects of Users' Background Diagram Knowledge and Task Characteristics upon Information Display Selection

8 years 4 months ago
The Effects of Users' Background Diagram Knowledge and Task Characteristics upon Information Display Selection
Abstract. This paper explores factors associated with effective external representation (ER) use. We describe an information-processing approach to the assessment of ER knowledge. We also present findings from a study that examined the effects of users' background knowledge of ERs upon performance and their preferences for particular information display forms across a range of database query types that differed in their representational specificity. A representationally specific task is one which can only be performed effectively with one type of representation (or a narrow range of representations). On highly representationally specific tasks, optimal ER selection is crucial. Both ER selection performance and reasoning performance are, in turn, predicted by an individual's prior knowledge of ERs. On representationally nonspecific tasks, participants performed well with any of several different ER types regardless of their level of prior ER knowledge. It is argued that ER eff...
Beate Grawemeyer, Richard Cox
Added 19 Oct 2010
Updated 19 Oct 2010
Type Conference
Year 2008
Where DIAGRAMS
Authors Beate Grawemeyer, Richard Cox
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