Doppler, J, Pohl, M, Beecham, R orcid.org/0000-0001-8563-7251 et al. (1 more author) (2021) Strategies for Detecting Difference in Map Line-Up Tasks. In: Lecture Notes in Computer Science. 18th IFIP TC 13 International Conference, 30 Aug - 03 Sep 2021, Bari, Italy. Springer Verlag , pp. 558-578. ISBN 978-3-030-85612-0
Abstract
The line-up task hides a plot of real data amongst a line-up of decoys built around some plausible null hypothesis. It has been proposed as a mechanism for lending greater reliability and confidence to statistical inferences made from data graphics. The proposition is a seductive one, but whether or not line-ups guarantee consistent interpretation of statistical structure is an open question, especially when applied to representations of geo-spatial data. We build on empirical work around the extent to which statistical structure can be reliably judged in map line-ups, paying particular attention to the strategies employed when making line-up judgements. We conducted in-depth experiments with 19 graduate students equipped with a moderate background in geovisualization. The experiments consisted of a series of map line-up tasks with two map designs: choropleth maps and a centroid-dot alternative. We chose challenging tasks in the hope of exposing participants’ sensemaking activities. Through structured qualitative analysis of think-aloud protocols, we identify six sensemaking strategies and evaluate their effects in making judgements from map line-ups. We find five sensemaking strategies applicable to most visualization types, but one that seems particular to map line-up designs. We could not identify one single successful strategy, but users adopt a mix of different strategies, depending on the circumstances. We also found that choropleth maps were easier to use than centroid-dot maps.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © IFIP International Federation for Information Processing 2021. This is an author produced version of a conference paper published in Lecture Notes in Computer Science. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Graphical inference; Cognitive strategies; Spatial autocorrelation; Geovisualization; Visual perception; Sensemaking; Thinking-aloud |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Geography (Leeds) > Centre for Spatial Analysis & Policy (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 03 Sep 2021 09:17 |
Last Modified: | 04 Sep 2021 01:12 |
Status: | Published |
Publisher: | Springer Verlag |
Identification Number: | 10.1007/978-3-030-85613-7_36 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:177584 |