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en:survey:opt-in-live [25.06.2015 10:40] – [PHP Code for Time 1] alexander.ritter | en:survey:opt-in-live [15.07.2015 21:19] – admin |
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====== Multi-Wave Surveys with Self-Selection ====== | ====== Multi-Wave Surveys with Self-Recruited Respondents ====== |
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As a general rule, participants' email addresses have to be known beforehand when carrying out a multi-wave survey as the respondents have to be invited, at some point, to a survey wave at a later date. However, if participants have been recruited via links on a website, social media or advertising banners, then their email addresses are not known beforehand. This chapter explains different technical solutions that guarantee the respondents' anonymity. | As a general rule, participants' email addresses have to be known beforehand when carrying out a multi-wave survey as the respondents have to be invited, at some point, to a survey wave at a later date. However, if participants have been recruited via links on a website, social media or advertising banners, then their email addresses are not known beforehand. This chapter explains different technical solutions that guarantee the respondents' anonymity. |