Table 3. Modifications made to the website in response to usability testing feedback.

Theme	Summary of issues identified by participants	Examples of website modifications
Aesthetics	Not visually engaging Images are generic Text hard to read when insufficiently contrasted with background	Added bright, colorful, young adult–relevant, session-consistent images throughout Ensured images reflected broad sociodemographic representation and ages Avoided business-like images Added colored text
Content	Relevance to cancer not obvious Purpose of both overall program and specific components (eg, interactive exercises) unclear Acronyms unknown	Added cancer-specific images throughout Added more detailed instructions throughout Spelled out acronyms
Function	Functionality of some aspects unclear (eg, interactive worksheets, achievements and events, favorites)	Develop standardized preprogram website orientation for participants to complete prior to being granted an account
Structure	Difficult to distinguish sections and topics	Adjusted font colors throughout to identify section headers, instructions, etc Added descriptive section titles Presented session text in multiple expandable sections