The End Of The Inflated Clinton Poll Theory

by: Chris Bowers

Fri Aug 24, 2007 at 15:04


How much of Clinton’s advantage is built on name recognition? Gallup take a closer look national name recognition numbers for the presidential field and cross references the results. They find that Clinton’s lead is partially built on name recognition, but by no means entirely so:
Candidate All Dems Familiar with the top 3 Unfamiliar with one or more of the top 3
Clinton 48% 43% 53%
Obama 25% 30% 17%
Edwards 13% 13% 10%


And thus, once again, the Inflated Clinton Poll Theory is proven to be partially correct (it had already been proven in Iowa, and nationally among undecideds). Clinton’s lead is indeed somewhat, just not entirely, inflated by the tendency of low-information voters to break her way. Among those who know all candidates, she leads by 13% over Obama. Among those who are not familiar with the “top three” candidates, she leads by 36%. Overall, her advantage among those not paying as much attention to the campaign account for about 10% of her current 23% lead in national Gallup polls.

However, the point we all need to remember is that while polls that push undecideds, low-information voters, and unlikely primary voters are all slightly inflating Clinton’s advantage, Clinton is still in front even when one removes all of those advantages. The main reason for this is that she has a higher favorability ratio, and higher overall strongly favorable numbers, than any other Democrat running for President. The chart on the right, produced by Pew, shows this. Even among Democrats who know Obama, Edwards and Clinton enough to form an opinion of them, Clinton still boasts a higher strongly favorable opinion (38% to 30% for Obama to 23% for Edwards) and a higher overall favorable ratio (88%-12%, versus 83%-17% for both Obama and Edwards). So, even if Edwards and Obama were to entirely catch up with Clinton in name recognition, they would continue to trail Clinton in national polls because Clinton has fewer unfavorables and a higher overall strongly favorable number. And it is very, very unlikely that will change before the start of the primary and caucus season, since Clinton’s edge was built up through a long-term, sixteen relationship with the base. There is nothing Obama and Edwards can do before Iowa to counter that advantage entirely.
So, in summary:
  1. National polls are inflating Clinton’s lead through her advantage among voters unfamiliar with the top candidates, undecided voters who are pushed to make a choice, and less likely primary voters / caucus goers both nationally and in early states like Iowa. I can prove all of that now. It isn’t just “theory” anymore.
  2. Clinton is ahead even after these factors are accounted for, and is probably still ahead outside the margin of error. While it is impossible to know for certain how far ahead she still is, a good guess is that the above factors collectively cut her lead in half. However, that still means her advantage is at least 8% nationwide, and thus outside the margin of error for almost all national polls.
  3. National polls don’t really matter that much, anyway. Clinton’s national advantage, which seems highly unlikely to disappear before the start of the primary season, means that she is the only candidate who can potentially survive early state losses and still have a change to win the nomination. While everyone else has to win either Iowa or New Hampshire, and Edwards probably has to win both, Clinton can still be the nominee as long as she finishes second in each state, and as long as Obama does not win Iowa.
So, this pretty much closes the book on the Inflated Clinton Poll Theory. The three points above provide the long and the short on how large Clinton’s national lead is, where that lead comes from, and what that lead means in determining the nominee. The rest is still dependent on the primary calendar, and the results in early states. Keep your eye on Iowa and the New Hampshire projection tables. As long as Clinton stays ahead of all three of Obama, Edwards and Richardson in at least one of those categories, she is still the favorite for the nomination, and thus the presidency. This is now the 92nd consecutive day she has held that position, and given the trends in Iowa, her grip on that position it appears to be strengthening. .
Chris Bowers :: The End Of The Inflated Clinton Poll Theory

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Thanks for your analysis (0.00 / 0)
Name recognition is why the state and national match up polls we see of the candidates a year plus in advance of the election are meaningless.  Clinton should do well in these polls.  She's the most well known Democrat running - for the present.

Who "Knows"? (0.00 / 0)

Isn't that the question here?

Doesn't all of this -- the notion that it is even possible to debunk or to validate the theory -- rest
on the assumption that there is an independent standard for "knowing" the candidates or being
sufficiently "familiar" with them to form an opinion -- a standard which doesn't exist and
couldn't be applied, even if it did?

 

Not exactly (0.00 / 0)
There doesn't need to be an objective standard for knowing, there just needs to be decreasing returns for additional information.  This is one of the main points of John Zaller's "Theory and Origins of Mass Opinion," which is one of the better books to come out of political science in the past 20 years.

Essentially, when responding to survey questions, people sample across the various bits of information that they have on a topic and use that to form their answer.  Respondents who have spent relatively less time following the topic can be easily swayed by question wording effects and also (germane to this discussion) by the next additional piece of information they receive on the topic.  Respondents with relatively more familiarity are more likely to have stable opinions simply because the next piece of information, pro or con, comprises a smaller portion of the total considerations that they're sampling across.

Or to put it more simply, low-information voters show measurably higher volatility than high-information voters.  This is regardless of any objective standard for knowing the candidates.  We're still in the pre-primary phase, so there's huge variance in voter information. 

As an aside, Chris, if you are unfamiliar with Zaller's work, I think you'd find it very interesting.


[ Parent ]
One more inflation factor: Age (0.00 / 0)
No-one polls the 17 year olds  who'll be eligible next year, nor do they account for actuarials on the deaths of older voters. Summer polling misses college students.



This is a Test of the Emergency Free Speech System. This is only a Test. In an actual Free Speech Emergency, I'll be locked up.


Interesting (0.00 / 0)
"she is still the favorite for the nomination, and thus the presidency."

Do you really think it's that simple? I have been tortured lately thinking about all the ways in which I fear she will lose the general, current map projections aside.

Politics is a strong and slow boring of hard boards.


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