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en:survey:unique-respondents [10.07.2018 20:25] – [Data clearing] adminen:survey:unique-respondents [10.07.2018 21:22] – [Data clearing] admin
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 IP is the Internet Protocol. Every computer with internet needs an IP address that is transmitted to a server when a request is made. The server's response (e.g., an HTML website) is sent back to this IP address. IP is the Internet Protocol. Every computer with internet needs an IP address that is transmitted to a server when a request is made. The server's response (e.g., an HTML website) is sent back to this IP address.
  
-SoSci Survey allows to record IP addresses. However, the IP address is considered as personal data in German jurisdiction. Therefore, the data record must be treated in accordance with the strict provisions of the BDSG (Federal Data Protection Act) if IP addresses are recorded. Also because participants can no longer be assured of complete anonymity. Therefore, the recording of IP addresses must be actively activated by the project manager in the[[privacy|Privacy Settings]].+SoSci Survey allows to record IP addresses. However, the IP address is considered as personal data in German jurisdiction. Therefore, the data record must be treated in accordance with the strict provisions of the BDSG (Federal Data Protection Act) if IP addresses are recorded. Also because participants can no longer be assured of complete anonymity. Therefore, the recording of IP addresses must be actively activated by the project manager in the [[privacy|Privacy Settings]].
  
 For the following reasons IP addresses are of little help for the control of multiple subscribers: For the following reasons IP addresses are of little help for the control of multiple subscribers:
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 If multiple entries are expected in competitions data cleansing might help. It is very unlikely that a participant will fill out the same questionnaire several times with the same motivation. It is much more likely that they complete the questionnaire as quickly as possible. If multiple entries are expected in competitions data cleansing might help. It is very unlikely that a participant will fill out the same questionnaire several times with the same motivation. It is much more likely that they complete the questionnaire as quickly as possible.
  
-If one excludes "rusher" in the course of data cleansing one should already have identified most multiple participants. This could e.g., be done by identifying questionnaires that were answered extraordinarily quickly, as well as cases with more than 20% missing answers (cf. variable [[:en:results:variables#interview-progress|MISSREL]]). See [[https://www.researchgate.net/publication/258997762|Leiner (2014)]] for more information on data cleansing.+If one excludes "rusher" in the course of data cleansing one should already have identified most multiple participants. This could e.g., be done by identifying questionnaires that were answered extraordinarily quickly, as well as cases with more than 20% missing answers (variable [[:en:results:variables#interview-progress|MISSREL]]). See [[https://www.researchgate.net/publication/258997762|Leiner (2014)]] for more information on data cleansing.
  
 If you collect the contact data for the competition separately from the other data ([[:de:create:questions:contact|Collect Contact Data Separately]]) you have to make sure that fast participants cannot register by using the PHP function ''[[:en:create:functions:casetime]]''. If you collect the contact data for the competition separately from the other data ([[:de:create:questions:contact|Collect Contact Data Separately]]) you have to make sure that fast participants cannot register by using the PHP function ''[[:en:create:functions:casetime]]''.
en/survey/unique-respondents.txt · Last modified: 24.05.2021 20:24 by sophia.schauer
 
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