This final report has been available since 2009, but conservatives keep trotting out the old, flawed “Initial Report.”
It’s probably because most google searches will get you the preliminary report. It’s how I found it a few months ago.
Also, there are lots of “summaries” people can find without having to go to your unsearchable PDF link.
http://www.nowpublic.com/world/analysis-most-accurate-polls-2008-presidential-election
Though that one is also a bit early.
And this one is later:
http://dl.dropbox.com/u/67204268/TIPP_accuracy_2008.pdf
On a side note, the IBD article above says IBD had predicted 7.2. which matched the Obama win, but the PDF you linked puts IBD at 6. I’m not sure which is correct.
Every analysis shown in that NowPublic article is invalid.
The “Report Card” which shows Rasmussen with an A- grade is based on a 6.5 margin, 52.6 to 46.1. That, like the Fordham Initial Report, is wrong.
The last summary is based on a 6.6% margin, 52.7% to 46.1%. Also wrong.
The article does link to the IBD/TIPP summary. That analysis IS based on the correct popular vote numbers and, like the final Fordham report, shows eight pollsters more accurate than Rasmussen.
Real Clear Politics, like the final Fordham report, shows IBD with an 8-point spread, 52/44. That would put them in 6th place. But if they actually had a 7.2 spread as claimed, then IBD would be most accurate.