Taking the lab on the road and bringing the road to the lab: On using mixed-methods and virtual reality to study a location-based task

dc.contributor.advisor Les Miller
dc.contributor.advisor Stephen Gilbert
dc.contributor.author Whitney, Kofi
dc.contributor.department Computer Science
dc.date 2019-08-21T14:25:17.000
dc.date.accessioned 2020-06-30T03:16:05Z
dc.date.available 2020-06-30T03:16:05Z
dc.date.copyright Wed May 01 00:00:00 UTC 2019
dc.date.embargo 2001-01-01
dc.date.issued 2019-01-01
dc.description.abstract <p>In earlier work, a lab and field study were employed to evaluate participants who used a digital map to complete a surveying task. The lab incorporated photos to simulate various scenarios within the task environment. It had a high degree of experimental control, strengths in quantitative data collection, and it could be easily replicated. Whereas the field study took place in the task’s natural setting (a neighborhood); it afforded participants to navigate the environment on foot, which allowed for more ecologically valid task outcomes and rich qualitative data collection. The strengths of the lab method were desired, but the rich context and the ecological validity of the field study proved to be critical to outcomes.</p> <p>In this research, three follow-up experiments were conducted. The first two field experiments explored differences in task outcomes between fieldworkers with high spatial visualization ability and low spatial visualization ability. Participants completed a series of surveying tasks using paper maps while navigating a neighborhood. The results indicated that task performance outcomes and behavior could be linked to participants' spatial visualization ability, their map usage patterns, and environmental factors.</p> <p>In the third experiment, a VR lab was used to replicate a field experiment on the task as it was performed by digital map users. An approach is highlighted to recreate the task environment—a neighborhood that was large in extent—using an immersive virtual environment (IVE). Outcomes from the field are compared to those of the VR lab, which enabled participants to move through the simulated neighborhood using a hands-free interface. Using this approach, strengths of the lab method (i.e., its experimental control) are combined with the ecological validity afforded to natural setting research. The results indicate that real-world behaviors observed in the field—and some of the expected task performance outcomes—were also evident in the VR lab. Many of the findings corroborate those of the two prior field experiments. Comparisons made across experiments show that task outcomes were linked to participants’ spatial visualization ability, their workflows, the street layout of the neighborhood, as well as the type of map used (i.e., paper vs. digital) and the styles of map use.</p> <p>This methodology can be applied—in the field and in lab settings—to evaluate location-based tasks that involve pedestrian navigation and map use; it can also be used to assess and validate VR labs that are designed to replicate mobile HCI field studies by simulating real-world task environments.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/etd/17123/
dc.identifier.articleid 8130
dc.identifier.contextkey 14821694
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath etd/17123
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/31306
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/etd/17123/Whitney_iastate_0097E_18075.pdf|||Fri Jan 14 21:16:52 UTC 2022
dc.subject.disciplines Art and Design
dc.subject.disciplines Cognitive Psychology
dc.subject.disciplines Computer Sciences
dc.subject.keywords HCI
dc.subject.keywords Human-Computer Interaction
dc.subject.keywords mobile computing
dc.subject.keywords navigation
dc.subject.keywords spatial ability
dc.subject.keywords virtual reality
dc.title Taking the lab on the road and bringing the road to the lab: On using mixed-methods and virtual reality to study a location-based task
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
relation.isOrgUnitOfPublication f7be4eb9-d1d0-4081-859b-b15cee251456
thesis.degree.discipline Human Computer Interaction
thesis.degree.level dissertation
thesis.degree.name Doctor of Philosophy
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