QA Fundamentals · Senior · Question 18 of 76
What should a QA lead check when an A/B test is planned?
- 1Only the new variant, since the old one already works
- 2That all users see both variants on every visit
- 3Both variants work, assignment is stable and metrics are tracked
Show the answer
Correct answer: Both variants work, assignment is stable and metrics are tracked
Explanation
A broken variant skews results; unstable assignment (users switching groups) and missing analytics events make the experiment useless.