Monday, January 30, 2012

Bogus Polling

 

A Note on Bogus Polling by Mark over at Mark America

 

I’ve heard from a few people really concerned about the polling in Florida, showing Gingrich down, and Romney up, which seems at least in part to be contradicted by the sense of things on the ground. I am going to show you how a poll can be twisted, and how you can’t trust them, and if you allow them to form your opinion, you can actually be manipulated. Let’s start with a very popular poll, the PPP(Public Policy Polling) outfit that currently shows Romney leading 40% to 32%.

 

In this poll, when you read to the bottom of the page and examine the data, you discover the following:

“The PPP poll surveyed 387 likely Florida Republican primary voters on January 28th with a margin of error of plus or minus 5 percentage points.”(emphasis mine)

Ladies and gentlemen, when you see ANY poll with such a small sample size, it’s GARBAGE. When you see any poll with a margin of error of more than 3%, it’s likely garbage, particularly if it has a small sample size. For a state as large and diverse as Florida, any poll that doesn’t survey at least 1500 people, with a margin of error well below 4% is a poll intended to generate a headline and drive you. 

 

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