Create surveys like a pro. Learn what kind of questions you should avoid. Make your questionnaire clear and easy to understand.
Avoid questions suggesting a certain answer. This kind of questions may contain terminology or word sequence that will lead the respondent to answer in a certain way. Often they include assumptions that are or maybe not true.
AVOID QUESTION : Is green your favourite colour?
Ask about one thing in a question. Combining questions in one sentence can make it difficult for a respondent to answer and can make it impossible to interpret question correctly.
AVOID QUESTION : Please score quality and price of product X on a scale 1 (very good) - 5 (poor).
Make sure your questions are not too long and can be interpreted in the same way by all survey participants.
Make sure your questions are in line with survey objective. A good way to check it is to ask somebody to read your survey, or to test it on a small sample.
Don't use words that may be difficult to understand like slang, jargon or abbreviations.