Interactive quizzes are easy to build, but the product choices around them matter more than the scoring logic. A quiz that asks personal or reflective questions should feel lightweight, private, and reversible from the first screen.
I use this checklist when reviewing a small quiz page or score calculator.
Keep the scoring local and predictable
If a quiz can calculate a score in the browser, it usually should. Users get a faster result, and the product does not need to collect answer-level data just to display a number. Even when analytics are useful, they can be separated from the sensitive input path.
A good pattern is:
