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|ID||Project||Category||View Status||Date Submitted||Last Update|
|07486||Feature requests||Statistics||public||2011-05-09 14:45||2019-05-17 08:30|
|Summary||07486: knowing presentation order of randomized questions can be important|
Randomization of questions is a great feature included in LimeSurvey 1.91. For people using LimeSurvey in psychological research, however, knowing the order in which randomized trials are presented can be important. In the analysis of psychological data, trial number is often included as an additional variable, to account for learning or fatigue effects.
A possible solution: store presentation order of randomized questions
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Alternative solution: Store presentation order in a string before presentation of first question
I therefore propse an alternative solution, namely, that for each group (or, indeed, across groups or all survey items?) the order of question presentation is determined before the first question is presented.
For example, this could easily be done by creating and writing to a long string field within the limesurvey[number] table which determines the order of presentation for each respondent. (Ideally, this should work for both randomized and nonrandom questions!!)
Then, for each group or question presented, the order can easily be determined by reading of the substrings of this field.
I agree. For psychological research this is critical. We need to know the presentation order for randomized questions.
Another situation where this would be needed. Imagine I want to present a set of randomized items, in separated screens. I want to ask two types of questions for each item in different screens (e.g. First answer Yes/No to a question, then tell me how confident you are in your response). As far as I see, there is no way to do this right now.
Storing the presentation order for the items would solve this type of problem.
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