Thursday, July 30, 2015

WHY YOU SHOULD BE SKEPTICAL OF THAT TRUMP-LEADS-FLORIDA POLL (AND WHY MAYBE YOU SHOULDN'T BE)

I'd love to believe this, though I'm skeptical:
Shock poll: Donald Trump leads Jeb Bush 26-20 percent … in Florida

For the first time this year, Donald Trump tops a state poll of GOP presidential candidates in Florida.

A St. Pete Polls survey released on Wednesday shows the New York businessman with 26 percent support, with Jeb Bush in second place with 20 percent.

Wisconsin Gov. Scott Walker is in third place with 12 percent, and Marco Rubio is in fourth place with 10 percent. He’s followed by Dr. Ben Carson at 5 percent, Ted Cruz and John Kasich at 4 percent, and Rand Paul at 3 percent....
There are reasons for skepticism. Last year, Daily Kos's David Nir criticized the track record and methodology of St. Pete Polls :



Nir specifically criticized St. Pete for having a pro-Republican lean and for conducting one-day robocall surveys. But a pro-GOP bias wouldn't matter in this case because it's just a poll of Republicans, and the pollster tells us this survey was conducted over the course of eleven days, not one.

But that's the only criticism of the pollster. When this story broke yesterday, Dave Weigel tweeted a link, and some of his readers picked apart the numbers:





Does it make sense in Florida that the 92% of the Republicans surveyed were white, or that (to be specific) 79.9% were 50 or over, and 32.5% were 70 and over?

Well, maybe it does make sense. The respected Edison Research exit-polled the 2012 Florida Republican primary, and 78% of its respondents were 45 or older, while 36% were 65 and older. Also, 83% were white (1% each were black, Asian, and "other," while 14% were Hispanic, of whom 8% were Cuban). So the St. Pete numbers aren't that far off.

The St. Pete gender skew is weird, however -- 61.9% male? Really? (Edison's 2012 exit-poll respondent poll was 51% male.) However, in the St. Pete poll, Trump wins among women as well as men, though men like Trump more (men: 28.2% Trump, 20.3% Bush; women: 23.2% Trump, 19.6% Bush).

So, yes, Trump may really be leading in Florida.