Why are polls showing contradictory results?
In a sense, every post on this site seeks to answer the question of why polls seem contradictory. A good place to start is with the following three pRead More…
Demystifying the art and science of pre-election polling – By Mark Blumenthal
In a sense, every post on this site seeks to answer the question of why polls seem contradictory. A good place to start is with the following three pRead More…
A good place to start is with the following three posts on the random variation inherent in all sample surveys and what a consumer can do to minimize Read More…
I have done a lot of posting on this topic. If you want a very thorough reading, start with Part I and continue through the series. You might also wRead More…
The debate over whether pollsters should statistically adjust (or weight) their samples by party identification has been heated during campaign 2004.&Read More…
When pollsters interpret results for a race involving an incumbent, most are at least aware of a phenomenon observed for telephone surveys over the laRead More…
These two posts from 2004 address discuss the issue of how households with cell phones but no "landline" service can affect telephone surveyRead More…
I comment from time to time on what the polls are saying about where the presidential race stands. Click on this link to display short excerpts of alRead More…
Start with these two posts on how instant polls and focus group aim to evaluate how candidates faired in a debate: Instant post-debate polls
Focus GrRead More…
More frequently asked questions – click the link for answers:
Can polls tell who won a debate?
Why do retrospective questions about the 2000 race showRead More…