Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

FR EXCLUSIVE - Poll Weighting Demystified...and the Bug in Rasmussen Polling
FR | 10-18-08 | Bob J

Posted on 10/18/2008 9:51:46 AM PDT by Bob J

For those wanting to know the inside story on how and why polling companys weight their samples, Rasmussen has done a pretty good job of explaining it.

Here you can get an overall explanation of the methodology and rationale;

The Value of Party Weighting for a Tracking Poll

Next they explain why there may be large differences between polls;

Why Polls Sometimes Show Different Results ,p>

Rasmussen establishes the weighting for the polls by conducting a party affiliation poll of 15k every month. Here they show the results since 2004;

Summary of Party Affiliation

Here's the bug. Since 2004 their Party Affiliation numbers have see-sawed somewhat since they are based on political conditions at that time. IMO in 2004 they saw an increase in republican identification leading up to the election due to concerns over the war in Iraq/terror and doubts about Kerry. In 2006 there was a likewise trend toward dems due to electorate frustration about Bush over the WOT and the economy, leading to a dem victory in the midterms.

The party identification numbers in the last four years hav averaged...2004 = +2.4% dem, 2005 = +1.9% dem, 2006 was +4.1% dem and 2007 was +4.8% dem.

However in the first 2 quarters of 2008 there was a jump to +9% dem. Huh?

This jump in dem identification is not only historically without precedent, there is nothing from a national, cultural or financial perspective to explain it. In Jan 2008 we started to see the US winning in Iraq, the economy was basically sound, the DOW at 13000 and there were no pressing cultural issues. Rasmussen weakly explains this by saying the "Pubs were having a hard time".

Baloney. The only plausible explanation for such a dramatic and unprecedented change in party affiliation over such a short period of time is manipulation.

Now I don't know if this was being done by Rasmussen "Party Affilation" polling employees (how do you "weight" this poll, BTW?), Operation Chaos or dem/ACORN fraud, but for Rasmussen to use these obviously manipulated numbers as a basis for his entire polling methodology is at best suspect and at worst professional incompetence.

FReepers have been right all along. When looking at Rasmussens numbers we should skew at least 4% back toward McCain to balance the error in party affiliation.

At worst, McCuda are tied and probably up by 1-2%.


TOPICS: Free Republic; News/Current Events; Politics/Elections
KEYWORDS: poll; rasmussen
Navigation: use the links below to view more comments.
first 1-2021-4041-6061-80 ... 101-104 next last

1 posted on 10/18/2008 9:51:46 AM PDT by Bob J
[ Post Reply | Private Reply | View Replies]

To: Bob J

Operation chaos?


2 posted on 10/18/2008 9:53:58 AM PDT by Rokke
[ Post Reply | Private Reply | To 1 | View Replies]

To: Bob J

BTTT


3 posted on 10/18/2008 9:53:59 AM PDT by alecqss
[ Post Reply | Private Reply | To 1 | View Replies]

To: Rokke

When Rush had pubs registering as dems and voting in the dem primary to throw “chaos” into the system.


4 posted on 10/18/2008 9:55:55 AM PDT by Bob J (For every 1000 hacking at the branches of evil, one strikes at it's root.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Bob J

Everyone is assuming Obama’s massive turnout operation having a major impact. Certainly the black vote will be increased, if nothing else. What we don’t know is whether the Bradley effect will cost Obama 1 point or 5 points. We also don’t know how much of an effect Palin will have on Republican turnout. Keep in mind, Kerry thought he’d win on turnout in 2004 and he did actually get 8 million more votes than Gore in 2000. The problem was that Bush turned out 11.5 million more votes than in 2000. Palin’s rallies seem to be stoking the base much like Bush did in 2004. McCain’s campaign claims to have made more phone contacts than were made at a similar point in 2004 by the vaunted Bush/Rove machine. The fact that McCain and the RNC have saved a wad of cash for the stretch run could also be a huge variable. There is still plenty of time to drive up Obama’s negatives with ads and phone calls.


5 posted on 10/18/2008 9:57:48 AM PDT by zebrahead
[ Post Reply | Private Reply | To 4 | View Replies]

To: Bob J

They are adding 5% fraud for the Dems. I believe John Fund said a few years ago that fraud for the Dems is around 4-5%. To win, Repubs have to overcome that.


6 posted on 10/18/2008 9:58:06 AM PDT by Hattie
[ Post Reply | Private Reply | To 1 | View Replies]

To: Rokke
LOL!!! GMTA!!

No need for me to post my prepared comment; you nailed it in the very first response...

7 posted on 10/18/2008 9:58:17 AM PDT by TXnMA (To anger a conservative: lie about him. To anger a liberal: tell the truth...)
[ Post Reply | Private Reply | To 2 | View Replies]

To: zebrahead

IMO the increaese in the black vote will be offset by the PUMA voters.


8 posted on 10/18/2008 9:59:04 AM PDT by Bob J (For every 1000 hacking at the branches of evil, one strikes at it's root.)
[ Post Reply | Private Reply | To 5 | View Replies]

To: Bob J

GOP identification is genuinely down, and here is why. Political figures and parties can become exhausted with the burdens of incumbency. So it is with the last years of the Bush administration. The GOP is fractured, weary, anxious, and angry because of too many lapses, too much deviation from conservative principles, and too much inarticulate bumbling. To a degree, McCain and Palin may be able to repair the damage to GOP identification, but at best it will be a close run thing.


9 posted on 10/18/2008 9:59:21 AM PDT by Rockingham
[ Post Reply | Private Reply | To 1 | View Replies]

To: Bob J

I don’t think anyone knows for sure what’s going to happen... there are way to many variables... I think we’re behind 3-4 points....


10 posted on 10/18/2008 9:59:45 AM PDT by bahblahbah (http://explorations.chasrmartin.com/2008/09/06/palin-rumors/)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Bob J

I was talking to a coworker about this the other day. Between operation chaos and PUMAs on our side, and ACORN et al on the other, there’s no telling what the actual state of this election is.


11 posted on 10/18/2008 9:59:57 AM PDT by TheZMan (barack HUSSEIN obama)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Bob J

“When Rush had pubs registering as dems and voting in the dem primary to throw “chaos” into the system.”

Sorry, I wasn’t clear at all. And I missed that you included Operation Chaos in your explaination. I do think that a significant number of Republicans registered as democrats as part of operation Chaos. Enough to impact registration statistics anyway.


12 posted on 10/18/2008 10:00:22 AM PDT by Rokke
[ Post Reply | Private Reply | To 4 | View Replies]

To: Rokke

Republicans who switched party to vote in primaries to keep the dhimmicrat chaos going. They are counted as dhimmicrats in the weighting.


13 posted on 10/18/2008 10:00:29 AM PDT by big'ol_freeper (Gen. George S. Patton to Michael Moore... American Carol: "I really like slapping you.")
[ Post Reply | Private Reply | To 2 | View Replies]

To: zebrahead
Palin’s rallies seem to be stoking the base much like Bush did in 2004.

Nah, more.

14 posted on 10/18/2008 10:00:34 AM PDT by conservative cat (I am voting for Sarah and against Obama.)
[ Post Reply | Private Reply | To 5 | View Replies]

To: Rokke

AOK.


15 posted on 10/18/2008 10:01:09 AM PDT by Bob J (For every 1000 hacking at the branches of evil, one strikes at it's root.)
[ Post Reply | Private Reply | To 12 | View Replies]

To: Bob J

This is great material. thanks for posting this.

It is a candid admission of the pathology surrounding polling.

It is not that difficult to understand that Operation Chaos switched the voter registrations of probably 5-7% of American voters. In order to vote against Hillary, they had to register as Democrats. Rasmussen and others are more than capable of understanding this or at least ignoring the Surge of Democrats in 2008.

This is important because go back and look at all the trend lines since August. Imagine if McCain and Palin had jumped out after the convention to more of a 15-20 point lead instead of a 10 point lead. What would the effect have been nationally? It would have turned the tide against he angry cynics clinging to Biden and Obama like guns and religion.

McCain and Palin have had their trend lines suppressed by pollsters dedicated to demoralizing the conservative base of this country. Consider that on October 5, independents were preferring the McCain Palin ticket by almost 10% according to Gallup. Now we are told that less than two weeks later the exact opposite is true and more than 10% greater favor Obama/Biden?

There needs to be some liability for these pollsters. They have incited a simmering insurrection in this country by refusing to be professionals.

They have gone right along with their journalistic brethren and said, ‘we don’t need to be professional in light of this ideological emergency.’

Its pathetic.


16 posted on 10/18/2008 10:02:27 AM PDT by lonestar67 (Its time to withdraw from the War on Bush-- your side is hopelessly lost in a quagmire.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Rokke

Possibly. But voters don’t reregister at the time they get angry with a party. They reregister when there is a primary election - as there was during the time the +9 jump in Democrat affiliation happened. That explains the big jump in party switches much better than a vague conspiracy theory.


17 posted on 10/18/2008 10:02:52 AM PDT by SeeSharp
[ Post Reply | Private Reply | To 2 | View Replies]

To: Rokke
Xactly. Republicans and independents registered democrat to vote for Hillary against Obama in the dem primaries, because the Republican contest was already settled by the time their state voted.

The unprecedented item this year was simply the length and closeness of the Democratic primary contest, which was itself a result of the dems changing their primaries to proportional representation affairs in most states, rather than winner take all. That made it nearly impossible for one candidate to win early, going away. Since the republicans did not make that change, their primary was settled early. The only meaningful voice anyone had in the later primaries depended on asking for a democratic ballot.

In other words, people's eagerness to vote *against* Obama, even in another party, is the actual cause of the pollster's silly overweightings of his *support*.

18 posted on 10/18/2008 10:03:11 AM PDT by JasonC
[ Post Reply | Private Reply | To 2 | View Replies]

To: Bob J

Oh heck there is going to be a party on Nov 5!!!!!


19 posted on 10/18/2008 10:03:34 AM PDT by BornToBeAmerican (Sarahcuda = the dems worst nightmare)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Perdogg; GOP_Lady; LS; perfect_rovian_storm; Chet 99; impeachedrapist; Norman Bates; shield; ...

Ping.


20 posted on 10/18/2008 10:04:33 AM PDT by kesg
[ Post Reply | Private Reply | To 1 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-4041-6061-80 ... 101-104 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson