Hi,

I want to present the following questionnaire, there's 3 levels of randomization in there and I can't get my head around how to do this:

1. for each participant we want to present 30 pictures in a random order
2. each of the 30 pictures has 8 captions (we want to cluster the captions per picture, so the participant sees the 1st picture with the 8 captions, then the 2nd picture with the 8 captions etc.) - we want to present the captions in a random order for each participant per picture
3. for the 8 captions we want to present there is more than 1 for each to choose from (e.g. for the 1st caption there is 4 to choose from, for the 2nd caption there is 9 to choose from etc.). for each of the 8 captions we want to chose one caption randomly (out of the various captions that exist for each caption), this has to be done randomly for each participant, too.

Can MediaLab handle things that are so complex? any help would be greatly appreciated! Thanks