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en:survey:opt-in-live [25.06.2015 10:40] – [PHP Code for Time 1] alexander.ritteren: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 ======
  
 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. 
en/survey/opt-in-live.txt · Last modified: 07.09.2022 20:57 by admin
 
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