Hey guys,

in my survey I compare 2 homepages. I'd like to put them in my survey with a iframe and then randomize them - so the user either gets to see homepage/ frame A oder homepage/ frame B. Is this possible and if so, how?

thanks!

If you embed the frame as answer option e.g. at a list radio question, you can set to randomly list the options. This can be set at the advanced question settings: www.limesurvey.org/manual/QS:Random_order

I would put the iframes in separate text-display questions and control their visibility via relevance based on a random number in a hidden equation question.

So I tried to figure out an equation but none will work. The frames work perfectly fine, but they're just listed below each other. What is the equation supposed to look like?

Assuming that your equation question precedes the text-display questions and has a code "random1", the equation in "random1" should be:
The relevance for the first text-display:
The relevance for the second text-display:

.

ok so I found the code and it worked perfectly fine - it showed either 1 or 2.

So I thought I could just put my frames in here instead of the 1 and the 2:

all I see is an empty box, but I dont get any error messages. Is there an error in my code, which I just don't see?

That will not work, rand() is a PHP function. Please read the manual - www.limesurvey.org/manual/Expression_Man...#Access_to_Functions

Have a look at this example for setting up A/B tests at Limesurvey: survey-consulting.com/how-to-randomize-i..._used_for_AB_testing