According to test made against WCAG accessibility guidelines, it appears Quiz Module and generally resource/acridity Boost theme pages, appears with accessibility issues: headers are not used in the expected hierarchical order.
- for initial page headers (messages and notification) h3 headers are used, missing first two headers level (h1 and h2)
- in a quiz activity, between course title (h1 header) and first question (h3 header) a h2 header level is missing
- quiz navigation block has a h5 header, which is below quiz last question text which has an h4 header
Point 1 holds true for any resource/active page in Moodle 3.5. Point 2 and 3 makes quiz activity not accessible.
Moodle version and build: Moodle 3.5beta+ (Build: 20180502)