I need my respondents to fill the same questionnaire once every week.

What would you suggest?

1. Create a new respondent (same name and email) every week
2. Create a new (copy) questionnaire every week
3. Some other option, I'm not aware of

I would go for solution 1 because answers can be timestamped so you'll know in which week an answer was given.
Also have a look at docs.limesurvey.org/Iterate+Survey&struc...tions+for+LimeSurvey

The link you provided doesn't offer a solution, as I need each user to be able to return every week for 2 months, but not every user starts at the same time ...

I'll go for solution nr. 1

thx.

...and I just checked: I can create 6 respondents for the same user, set the activation dates interspersed with 1 week, and invitations will be delayed until the respondet key is activated cool!

You're welcome.

Maybe you can add some lines about your approach to our manual. Other users will be very interested in that solution.
Our manual is a wiki, everybody can edit it anc you can't do much wrong.

sure thing - will do. I'll just get the first couple of participants through, so I know it works for sure.

Great, thanks!