Why does my phone number have to match my location?

In order to create or update an account, participants’ international phone code prefix must match the country listed on their profile. 


  • A phone number uniquely associated with your account 
  • An international calling prefix that matches your geographic location

Why is this required? 

Participants rely on researchers to publish paid projects on the Respondent platform, and researchers rely on the quality of those participants. Verifying your identity based on location is one part of a multi-step quality assurance process that reduces fraud and increases the number of compensated opportunities available to legitimate research participants.