The Egocentric Map Perspective in Thematic Choropleth Maps
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Date
2010-09
Authors
Millett, Matthew E., 1971-
Journal Title
Journal ISSN
Volume Title
Publisher
University of Oregon
Abstract
Choropleth maps are a popular way of depicting spatial data. The map
communication model, which theorizes that geographic information is transmitted from
the cartographer to the map user via a map, suggests that cartographers are responsible
for clearly conveying spatial data in a way all map users can understand. Map users,
however, come from different places and may harbor certain regional biases. This thesis
investigates whether map users tend to focus on data patterns within their home regions
during the visual-search and decision-making processes when reading classed choropleth
maps, thereby exhibiting an egocentric map behavior. Seventy-one subjects took a
computer-based test asking them to identify various phenomena on a series of choropleth
maps of the lower 48 states. The results show a weak positive effect of egocentric map
behavior; subjects who lived in a particular state longer were slightly more likely to
choose states nearby their home region.
Description
xii, 80 p. : ill., maps (some col.) A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.
Keywords
Choropleth maps, Maps