Table 3. Usability Testing Feedback on Epilepsy Journey Modules/Destinations.

Domain	Examples from usability testing	Examples of changes made to the intervention website
Usability Problems
Navigation problems	Difficulty signing up for the website Difficulty navigating back to Home page	Registration completed prior to engagement in website Two links on every page to navigate to Home page
Confusion	Participants were unsure of what the content in a module meant	Clarified content in instances of confusion
Need for more Engagement /Interaction	Participants stated interest in more interaction throughout the module. An emphasis was placed upon the heavy use of text and lack of content where the participant could interact.	Added interactive content; present in every module Interactive games in all modules Real-life videos or examples in all modules
Features that Promote Usability
Progress Bar	Participant liked the inter-module sidebar navigation and progress bar as a tool for both seeing their progress and for referencing prior pages in the module.	Progress bar utilized in every module.
Length	Participant stated modules were the appropriate length	Length of modules were maintained or shortened
Journey Theme	Participants expressed sentiments of interest, attention, or pleasure towards the map level select on the home page	Kept interactive map (See Figure 1)
Positive Feelings towards “Brainy” Character	Participants stated that the character, “Brainy”, was cute, enjoyable and likeable	Character of “Brainy” utilized throughout modules. T-shirts with Brainy printed on them are provided as an additional incentive to adolescents participating in the study.
Skimming Content	Participants verbally expressed they were skipping over pieces of the lesson, eye tracking indicated that they did not see content, or their actions intentionally or unintentionally led to the skipping of content in the module.	Modules were shortened by decreasing amount of text and deleting some content (e.g., fewer memory strategies in Mists of Memory). Modules maintained text that allowed for skimming.
Relevant to teens with epilepsy/self	Participant stated that the content, site designs, or experience was relatable.	Real-life videos or examples maintained/added in all modules