Natural-Setting PHR Usability Evaluation using the NASA TLX to Measure Cognitive Load of Patients

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dc.contributor.authorPachunka, Emily
dc.contributor.authorWindle, John
dc.contributor.authorSchuetzler, Ryan
dc.contributor.authorFruhling, Ann
dc.date.accessioned2019-01-03T00:21:41Z
dc.date.available2019-01-03T00:21:41Z
dc.date.issued2019-01-08
dc.description.abstractWhile personal health records (PHRs) carry an array of potential benefits such as increased patient engagement, poor usability remains a significant barrier to patients’ adoption of PHRs. In this mixed methods study, we evaluate the usability of one PHR feature, an intake form called the pre-visit summary, from the perspective of cognitive load using real cardiovascular patients in a natural setting. A validated measure for cognitive load, the NASA Task Load Index, was used along with retrospective interviews to identify tasks within the pre-visit summary that increased participants’ cognitive load. We found that the medications, immunizations, active health concerns, and family history pages induced a higher cognitive load because participants struggled to recall personal health information and also due to user interface design issues. This research is significant in that it uses validated measures of cognitive load to study real patients interacting with their PHR in a natural environment.
dc.format.extent10 pages
dc.identifier.doi10.24251/HICSS.2019.480
dc.identifier.isbn978-0-9981331-2-6
dc.identifier.urihttp://hdl.handle.net/10125/59832
dc.language.isoeng
dc.relation.ispartofProceedings of the 52nd Hawaii International Conference on System Sciences
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectIT Adoption, Diffusion and Evaluation in Healthcare
dc.subjectInformation Technology in Healthcare
dc.subjectcognitive load, health information technology, personal health record, usability
dc.titleNatural-Setting PHR Usability Evaluation using the NASA TLX to Measure Cognitive Load of Patients
dc.typeConference Paper
dc.type.dcmiText

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