Hi,
Could someone please describe to me how the randomisation function works in Limesurvey. For research purposes I would like to know the kind of randomisation that is carried out.

Any help and suggestions are greatly appreciated.
Gorp

gorp wrote: how the randomisation function works in Limesurvey.

Which randomization function do you investigate?

When I randomize question groups and when I randomize questions within question groups.

Till someone from the developers might post here, you can take a look at sections of the PHP code.

github.com/LimeSurvey/LimeSurvey/blob/24...tend_helper.php#L987

The shuffle algorithm can be found here:
github.com/LimeSurvey/LimeSurvey/blob/66...senneTwister.php#L44