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The effects of knowledge-of-external-representations upon performance and representational choice in a database query task.
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posted on 2023-06-08, 06:36 authored by Richard CoxThis study examined the representation selection preference patterns of participants in a database query task. In the database task, participants were provided with a choice of information-equivalent data representations and chose one of them to use in answering database queries. A range of database tasks were posed to participants - some required the identification of unique entities, some required the detection of clusters of similar entities, and some involved the qualitative comparison of values, etc. Participants were divided, post hoc, into two groups on the basis of a pre-experimental task (card sort) designed to assess knowledge of external representations (KER). Results showed that low and high KER groups differed most in terms of representation selection on cluster type database query tasks. Participants in the low group tended to change from more graphical representations such as scatterplots to less complex representations (like bar charts or tables) from early to late trials. In contrast, high KER participants were able to successfully use a wider range of ER types. They also selected more appropriate ERs (ie. ones that the diagrammatic reasoning literature predicts to be well-matched to the task).
History
Publication status
- Published
ISSN
0302-9743Publisher
SpringerVolume
LecturPage range
351-354Pages
4.0Presentation Type
- paper
Event name
Third International Conference, Diagrams 2004Event location
Cambridge, UKEvent type
conferenceISBN
3-540-21268-XDepartment affiliated with
- Informatics Publications
Full text available
- No
Peer reviewed?
- Yes
Editors
K Marriott, A Blackwell, A ShimojimaLegacy Posted Date
2012-02-06Usage metrics
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