Artilce: Why Presidential Polls Are Wrong (
http://www.livescience.com/history/080109-bad-polls.html)
The larger problem with many of today's political pollsters is that surveys are conducted in affiliation with media organizations, said Shawn Parry-Giles, a political communications professor at the University of Maryland who camped out in New Hampshire prior to the primary to make observations.
"Media aren't going to be self-reflexive about their poll," Parry-Giles said. "The journalists themselves just bought into the fact that [Obama] was so far ahead and it was inevitable. I was stunned by the coverage."
The media should stop treating polls as if they are factual information, she said.
"This is about what the voters say and do, and media has to be very careful about how they frame the polls," Parry-Giles told LiveScience.
One poll by CNN/WMUR/UNH on the anticipated results in New Hampshire had a relatively small sample size (which cripples a survey's accuracy) and a fairly large margin of error, but it was reported as accurate and went unquestioned, she said I thought we could talk about the credibility of polls. Recent history has shown the media has been wrong. Durring the primary races, media groups missed almost every polling mark. How credible are these polls?