TY - GEN
T1 - Natural-setting PHR usability evaluation using the NASA TLX to measure cognitive load of patients
AU - Pachunka, Emily
AU - Windle, John
AU - Schuetzler, Ryan
AU - Fruhling, Ann
N1 - Publisher Copyright:
© 2019 IEEE Computer Society. All rights reserved.
PY - 2019
Y1 - 2019
N2 - While 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.
AB - While 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.
UR - http://www.scopus.com/inward/record.url?scp=85099992714&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85099992714&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85099992714
T3 - Proceedings of the Annual Hawaii International Conference on System Sciences
SP - 3954
EP - 3963
BT - Proceedings of the 52nd Annual Hawaii International Conference on System Sciences, HICSS 2019
A2 - Bui, Tung X.
PB - IEEE Computer Society
T2 - 52nd Annual Hawaii International Conference on System Sciences, HICSS 2019
Y2 - 8 January 2019 through 11 January 2019
ER -