Hey!
We are considering using LimeSurvey to create a questionnaire that will be send to participants three times during three years. So our design is a longitudinal one and we need to connect the individual`s answers to their earlier answers.
We would prefer to create inlogcodes for each participant and they would log into the questionnaire with that code. The e-mails and codes would be in separate document (most likely excel) and in the LimeSurvey we would only operate with codes (not e-mails).
Is the above mentioned possible? Or how have you who have experience of longitudinal measurements used LimeSurvey to connect answers to individuals over time?
Also I would ask is it possible to have more than one administrator for a questionnaire?
Thank you for your help!
