a) Randomizing the answer options of a question
b) Reorder the survey responses (lines) so that you can't find out in which order the questionnaires were filled in
Responses are only written to the database when the survey is active. After each page of the survey the data is written to the database, so if you are in question by question mode this would happen after each question.
I answer at the LimeSurvey forum in my spare time, I'm not a LimeSurvey GmbH employee.
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