Table 5.

Summary of content changes made in response to usability testing.

Page	Content feedback	Changes made
1. Introduction	Want more information on this page	Short summary was added to introduction
2. What is IMAGINE-PDa	Too much information	Cut down on information
6. Genetics introduction	Too much information all at once	Added animations and broke page to 2 pages
7. VUSb	Wording is too technical	Removed to focus on the relevant testing and simplify material
12. Implications and limitations to GTc	Accent was hard to follow at first	Added page with script of video
14. GBAd page 1	Confused about GBA in Ashkenazi Jews, information too technical	Information was cut down and simplified
15. GBA page 2	Information too technical	Simplified information
16. GBA page 3	Want more relevance to PDe	Clarified the relevance of GBA to PD
17. LRRK2f page 1	Information too technical	Simplified information
18. LRRK2 page 2	Information too technical	Simplified information

^aIMAGINE-PD: Interactive Multimedia Approach to Genetic Counseling to Inform and Educate in Parkinson’s Disease.

^bVUS: variant of uncertain significance.

^cGT: genetic testing.

^dGBA: glucocerebrosidase.

^ePD: Parkinson disease.

^fLRRK2: leucine-rich repeat kinase 2.