Translations:How to design a good survey (guide)/64/en

Adding to that, always keep the user experience in mind. Reading, scrolling and clicking are tiring activities, so:
 * 1) Avoid any unnecessary question
 * 2) Use conditions to avoid asking questions not relevant for a specific participant
 * 3) Keep questions and answers short and easily readable - use appropriate markup
 * 4) Think about the trade-off between scrolling and clicking. Display everything on one page for short questionnaires (5-15 questions, depending on question complexity). Use groups wisely for longer questionnaires, i.e. group questions comprehensibly; use group descriptions to give a clear statement about the topic of the following questions.
 * 5) Avoid confusing participants with different scales, i.e. limit the amount of different scales types, scale scopes and different scales descriptions as much as possible. Try not to change the direction of scales. (There are some methodological exceptions).
 * 6) For rating scales it might be useful to use an even number of rating options so the user has to decide for a certain direction (see below).