Can I loop questions? for example if I ask the question "how many people live at this address" and the answer is 3. the next set of questions are name, age, sex, and date of birth. How do I then go back to name etc for the second and third persons in the household
There is no true looping in LimeSurvey. You will need to create as many groups of demographic questions as the maximum "people living at this address" and then hide/show those groups with conditions.
Cheers,
Tony Partner Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.