Comment on Sparrow and Curtice and Kellner

This paper looks at the arguments of Keller and Sparrow and Curtice and comments on the internet polling debate.
  

Comment on Sparrow & Curtice and Kellner

John O'Brien

I remember back in the early 1980s, market researchers got very concerned about the adequacy of telephone sampling as a general populationresearch tool. In particular, the performance...