anchor.diff:  
   If you have any questions, contact: delphi-admin-survey-fb@lists.andrew.cmu.edu
   
  -You must be 18 years or older and currently located in the U.S. to take this survey. Are you 18 years or older and currently located in the U.S.?",NA,"{""1"":""Yes"",""2"":""No""}","Multiple choice","none","none","all"
  -6,"S1",NA,"consent","This voluntary survey is part of a research study led by the Delphi group at Carnegie Mellon University. Even if you are healthy, your responses may contribute to a better public health understanding of the spread of the coronavirus pandemic and its effects on public health and well-being. This may help improve our local and national responses to the pandemic and our understanding of how it has affected society.
  +You must be 18 years or older and currently located in the U.S. to take this survey. Are you 18 years or older and currently located in the U.S.?",NA,"{""1"":""Yes"",""2"":""No""}",Multiple choice,none,none,all
  +6,S1,NA,consent,"This voluntary survey is part of a research study led by the Delphi group at Carnegie Mellon University. Even if you are healthy, your responses may contribute to a better public health understanding of the spread of the coronavirus pandemic and its effects on public health and well-being. This may help improve our local and national responses to the pandemic and our understanding of how it has affected society.
   
   This survey is intended to take roughly 10 minutes to complete. We encourage you to complete the survey each time you are invited, even if you have participated before. Completing the survey again will help us understand how the situation is changing.
   
  
positive.code: 
  If you have any questions, contact: delphi-admin-survey-fb@lists.andrew.cmu.edu
  
  You must be 18 years or older and currently located in the U.S. to take this survey. Are you 18 years or older and currently located in the U.S.?",NA,"{""1"":""Yes"",""2"":""No""}","Multiple choice","none","none","all"
  8,"S1",NA,"consent","This voluntary survey is part of a research study led by the Delphi group at Carnegie Mellon University. Even if you are healthy, your responses may contribute to a better public health understanding of the spread of the coronavirus pandemic and its effects on public health and well-being. This may help improve our local and national responses to the pandemic and our understanding of how it has affected society.
  
  This survey is intended to take roughly 10 minutes to complete. We encourage you to complete the survey each time you are invited, even if you have participated before. Completing the survey again will help us understand how the situation is changing.
  
  
negative.code: 
  If you have any questions, contact: delphi-admin-survey-fb@lists.andrew.cmu.edu
  
  You must be 18 years or older and currently located in the U.S. to take this survey. Are you 18 years or older and currently located in the U.S.?",NA,"{""1"":""Yes"",""2"":""No""}",Multiple choice,none,none,all
  5,S1,NA,consent,"This voluntary survey is part of a research study led by the Delphi group at Carnegie Mellon University. Even if you are healthy, your responses may contribute to a better public health understanding of the spread of the coronavirus pandemic and its effects on public health and well-being. This may help improve our local and national responses to the pandemic and our understanding of how it has affected society.
  
  This survey is intended to take roughly 10 minutes to complete. We encourage you to complete the survey each time you are invited, even if you have participated before. Completing the survey again will help us understand how the situation is changing.
  
  