Table 3.

Qualitative feedback and corresponding revisions during usability testing

Primary Areas of Feedback	Revision
1) Content  -Inclusion of viral testing confusing as focus of app on bacterial infections and testing  -Clarity needed on which tests are always done vs. which tests are contingent on results of other tests (i.e., LP for infants age 29 to 60 days)	-Description of viral testing removed from the app and language added to the “why testing is done” section that the app will focus on testing for bacterial infections -Text modified for the 29 to 60 days version of the app to provide clarity that the decision about LP will be contingent on the results of urine and blood testing
2) Navigation  -In the “what happens after the test results are known” section for infants 29 to 60 days of age, participants did not know to scroll down to the table to review the risks and benefits of LP vs. no LP  -In the “what happens after the test results are known” section, participants had difficulty navigating back to the main screen	-Hyperlink added to direct parents to review the table: “Please tap here for information to help you think about whether or not you want your baby to have a spinal tap” -Hyperlink added to direct parents to return to the main screen: “Tap here to go back to the prior screen”
3) Icon Array  -Most participants did not know how access the icon array	-The hyperlink to the icon array was bolded