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MysteryPollster

Demystifying the art and science of pre-election polling – By Mark Blumenthal

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Polling Has Changed. The Way We Read (And Sometimes Misread) It Has Not.

January 10, 2020January 12, 2020 Mark Blumenthal3 Comments on Polling Has Changed. The Way We Read (And Sometimes Misread) It Has Not.

In the 15 years since I started writing MysteryPollster, pre-election polling has changed a lot, yet when it comes to what we expect from polls, muchRead More…

Impeachment Update: No Signs of Non-Response Error

October 25, 2019October 25, 2019 Mark BlumenthalLeave a Comment on Impeachment Update: No Signs of Non-Response Error

Support for impeaching and removing President Donald Trump from office has increased to near majority support on a wide variety of polRead More…

Happy Anniversary

September 22, 2005October 1, 2019 Mark Blumenthal10 Comments on Happy Anniversary

Yes, hard to believe, but it was exactly one year ago today that I wrote my first post on sampling error.  At the time, I was not sure if this eRead More…

NCPP Special Citation

June 1, 2005October 1, 2019 Mark Blumenthal10 Comments on NCPP Special Citation

Just wanted to pass on some very flattering news for MP.  The National Council of Public Polls (NCPP) today announced the winners of it’s "ERead More…

One Less Mystery

October 21, 2004October 1, 2019 Mark Blumenthal3 Comments on One Less Mystery

One more puzzle I can help demystify: Those ever so slightly variant numbers from the Washington Post and ABC News, the numbers based on the same datRead More…

Kohut’s Op-Ed Piece

October 21, 2004October 1, 2019 Mark Blumenthal11 Comments on Kohut’s Op-Ed Piece

Since my email box was chock full of forwarded copies of Andrew Kohut’s op-ed piece on polling in this morning’s New York Times, I thought I would bloRead More…

Off Topic: Fox News Hacked?

October 1, 2004October 1, 2019 Mark Blumenthal3 Comments on Off Topic: Fox News Hacked?

A break from polling for a moment.
Josh Marshall has been posting this afternoon (here, here and here) about a mysterious story about John Kerry that Read More…

The First Debate: Who Won?

October 1, 2004October 1, 2019 Mark Blumenthal2 Comments on The First Debate: Who Won?

Murphy’s Law might explain why a week after starting a blog, my home DSL and phone service has been out for three days running (perhaps that should beRead More…

How do pollsters select “likely voters?”

September 28, 2004October 1, 2019 Mark Blumenthal

I am currently at work on a detailed series of postings on how pollsters select likely voters. Clicking on this link will display short excerpts of Read More…

Recent Posts

  • Polling Has Changed. The Way We Read (And Sometimes Misread) It Has Not.
  • Impeachment Update: No Signs of Non-Response Error
  • Gelman: Nonresponse Not So Rare
  • MysteryPollster is Back!
  • Another ‘Phantom Swing’? Investigating Differential Nonresponse in 2018

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