Collecting data and information ad hoc or ex-post
Questionnaire surveys require significant efforts to both develop the questionnaire and set up the survey but also to securing adequate number of responses. This presupposes that the contact details are clean and correct as much as possible and also that adequate attention is paid in making first contacts with people and persuade them to take part.
We use cookies for statistical purposes and to remember your settings. Please check our privacy and cookies policy.
We use cookies for statistical purposes and to remember your settings. Please check our privacy and cookies policy.