What are common survey mistakes to avoid?

Leading questions are probably the most common one - closely followed by cramming two issues into a single question, confusing wording, and surveys that just run too long. Watch for unclear scales, answer options that aren't balanced, and missing choices like "not applicable" or "other." Don't ask people to remember things they realistically can't.

Timing matters too - asking about product value before someone's actually used the product will give you noise, not signal. Another one people miss: collecting feedback and never explaining what happens with it. And don't treat a handful of responses as if they speak for your whole audience. Check the survey for bias, test it on a few people first, and cut anything that doesn't point to a clear decision.