PPP/DailyKos weekly poll has Obama up 8
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Author Topic: PPP/DailyKos weekly poll has Obama up 8  (Read 5258 times)
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bawlexus91
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« on: June 06, 2012, 10:39:01 AM »
« edited: June 07, 2012, 11:51:33 AM by Tender Branson »

50-42 Obama

http://dailykos.com/weeklypolling/2012/5/31
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tmthforu94
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« Reply #1 on: June 06, 2012, 10:44:22 AM »

Last night showed that PPP has a Democratic lean. While some may dismiss bawlexus because they don't like what he's saying, well, he's right - this poll does lean too pro-Democratic.
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Brittain33
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« Reply #2 on: June 06, 2012, 10:45:39 AM »

Yep, PPP results are suspect. That MO O+1 poll in particular was a warning.
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DrScholl
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« Reply #3 on: June 06, 2012, 10:58:03 AM »

Polls this early don't exactly reflect what actual election results will be, some of them don't even reflect the exact results close to the election. National polling as odd swings, the next poll probably will be a lot closer.
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tmthforu94
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« Reply #4 on: June 06, 2012, 11:01:41 AM »

Polls this early don't exactly reflect what actual election results will be, some of them don't even reflect the exact results close to the election. National polling as odd swings, the next poll probably will be a lot closer.
There's a simple explanation why this poll is too pro-Obama - the sample. This is with 2012 turnout better for Democrats than 2008, which is highly unlikely.
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DrScholl
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« Reply #5 on: June 06, 2012, 11:08:52 AM »
« Edited: June 06, 2012, 11:24:58 AM by DrScholl »

There's a simple explanation why this poll is too pro-Obama - the sample. This is with 2012 turnout better for Democrats than 2008, which is highly unlikely.

I'll repeat, national polling has very odd swings (even party ID) and polling hardly ever exactly matches what the electorate will be like, especially not this early. I'm not saying that the poll isn't too high for Obama, but the sample isn't pre-determined, party ID is asked about during the call and after the presidential race is asked about, which is more consistent with an odd swing.
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Miles
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« Reply #6 on: June 06, 2012, 11:25:41 AM »

Rasmussen was only two points more accurate than PPP...give me a break.
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King
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« Reply #7 on: June 06, 2012, 11:26:25 AM »

I made the painstaking journey to the Gubernatorial polls board to have a look for myself at this apparently legendary PPP f-up. They predicted a Walker 3 point victory and he won by 6 and some change on a four point margin of error.

I demand baxlexus and tmth give me my money back after such a lofty promise.
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tmthforu94
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« Reply #8 on: June 06, 2012, 11:28:51 AM »

I made the painstaking journey to the Gubernatorial polls board to have a look for myself at this apparently legendary PPP f-up. They predicted a Walker 3 point victory and he won by 6 and some change on a four point margin of error.

I demand baxlexus and tmth give me my money back after such a lofty promise.
There was no promise - but the results do show that PPP has a Democratic lean, which is what we've been suggesting for a while could be the case.
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krazen1211
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« Reply #9 on: June 06, 2012, 11:30:25 AM »

I made the painstaking journey to the Gubernatorial polls board to have a look for myself at this apparently legendary PPP f-up. They predicted a Walker 3 point victory and he won by 6 and some change on a four point margin of error.

I demand baxlexus and tmth give me my money back after such a lofty promise.

7, actually, which is what most of the other non trash pollsters said.
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King
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« Reply #10 on: June 06, 2012, 11:36:15 AM »

A statistically insignificant Democratic lean in one state that could be cancelled out by dozens of polls in other states in 08 and 10 where they landed statistically insignificant to the right.

I'm not saying it's Obama+8 right now, but it's no better than Obama+4.5. There's a MOE for a reason.

Rasmussen polls landed outside of their MOE in 2010, that's why Silver criticized them.  It's an inexcusable result.  That said, I still do not reject Rasmussen polls as, even with their 2010 performance, past results are not indicative of future accuracy.
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Amenhotep Bakari-Sellers
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« Reply #11 on: June 06, 2012, 11:51:28 AM »

Well romney cant cure his ills by just picking portman. Romney w that scenario would lose va co and nv. People connect more w obama.
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krazen1211
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« Reply #12 on: June 06, 2012, 12:21:35 PM »

A statistically insignificant Democratic lean in one state that could be cancelled out by dozens of polls in other states in 08 and 10 where they landed statistically insignificant to the right.

I'm not saying it's Obama+8 right now, but it's no better than Obama+4.5. There's a MOE for a reason.

Rasmussen polls landed outside of their MOE in 2010, that's why Silver criticized them.  It's an inexcusable result.  That said, I still do not reject Rasmussen polls as, even with their 2010 performance, past results are not indicative of future accuracy.

Of course in 08 and 10, PPP didn't repeatedly put out polls to the left of other pollsters. They are now.
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Lief 🗽
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« Reply #13 on: June 06, 2012, 02:41:15 PM »

PPP was one of the most accurate pollsters in 2010 and 2008 but because of one poll for a special election where they off within the margin of error, they are now a trash poll with a huge Dem bias. Gotcha.
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emailking
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« Reply #14 on: June 06, 2012, 02:47:59 PM »

And sure, PPP was only off by 4 pts, but that's pretty poor compared to how many pollsters GOT IT RIGHT

If they reported a number that was off from the actual result by 4 points but there was a margin of error of 4 points, then they did "get it right." That's just how statistics works. 
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argentarius
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« Reply #15 on: June 06, 2012, 02:55:56 PM »

PPP was one of the most accurate pollsters in 2010 and 2008 but because of one poll for a special election where they off within the margin of error, they are now a trash poll with a huge Dem bias. Gotcha.
There's also the fact that all their state polls are far more democratic than other state polls.
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Frozen Sky Ever Why
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« Reply #16 on: June 06, 2012, 02:58:13 PM »

Rasmussen/Mason-Dixon are the most accurate in my book. The fact that PPP agrees with most other pollsters means nothing, considering the other major pollsters are Survey USA/CNN-TIME/Quinnipac and other crap.
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Wisconsin+17
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« Reply #17 on: June 06, 2012, 03:07:52 PM »

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Indeed. O up by only 8 in Wisconsin? Trash poll.
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Sbane
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« Reply #18 on: June 06, 2012, 04:04:59 PM »

PPP was one of the most accurate pollsters in 2010 and 2008 but because of one poll for a special election where they off within the margin of error, they are now a trash poll with a huge Dem bias. Gotcha.

Just saying something over and over and over doesn't make it true. http://www.fivethirtyeight.com/search/label/pollster%20ratings There are 12...count them...12 pollsters w/ a better track record than PPP.

And when considering ONLY 2010 results, they were 4th out of 8. http://fivethirtyeight.blogs.nytimes.com/2010/11/04/rasmussen-polls-were-biased-and-inaccurate-quinnipiac-surveyusa-performed-strongly/

Not sure where this myth that PPP is the most accurate pollster came from, but as you can see from Nate Silver's ratings, that just isn't the case.

Thank you for posting this since it shows where Rasmussen is ranked as well. And usually the worst polls for Obama are from Rasmussen. The rest are somewhere in the middle. Including the highly ranked ABC poll which shows Obama up by 3. Do you agree that Obama is probably leading by about 3 points currently, which is also the RCP average (which also absolutely clinched the Wisconsin result)?
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Alcon
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« Reply #19 on: June 06, 2012, 04:11:44 PM »

No one promised anything. And sure, PPP was only off by 4 pts, but that's pretty poor compared to how many pollsters GOT IT RIGHT, and pretty poor for a pollster everyone claims is the best

adsfasf.

This is not how statistics work!

An absolutely perfect pollster will FREQUENTLY have nights like this, even if they are doing everything perfectly with a perfect sample.

I'm not saying that there isn't some aggregate bias in PPP, but this is an absolute failure of an argument demonstrating any such bias.  Have you even calculated the probability of this size of a miss with a perfect sample?  Have you estimated a house effect using previous polling results?  Anything?

Or are we seriously going, "Idk about statistics, but other pollsters got it right"?  Oy vey.
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Alcon
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« Reply #20 on: June 06, 2012, 04:50:57 PM »

"Bias" in statistics is not the same as "house effect," which matches the colloquial definition of "bias."  Statistical bias is any deviation from the population parameter.

I read exactly what you were doing.  "But that's pretty poor compared to how many pollsters GOT IT RIGHT" -- Why do you find this meaningful?  You understand that pollsters cannot possibly do better than a perfect sample?  If a pollster averages out to hit within MoE more often than 95% of the time, that does not mean they are better.  That means they are lucky.  Accordingly, observing that other pollsters did better than PPP in one race is a fairly useless analysis.

I replied to your post after reading this comment in another thread: "After a stellar polling job in last night's Wisconsin recall (NOT)."  This comment is misleading.  PPP could have done a perfect job of polling, and a perfect job of predicting turnout, and ~20-25% of the time (just guesstimating) they still would have missed by about 4 percentage points.  You have absolutely no idea from your analysis if they didn't do a "stellar" job of polling.
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krazen1211
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« Reply #21 on: June 06, 2012, 05:01:55 PM »

"Bias" in statistics is not the same as "house effect," which matches the colloquial definition of "bias."  Statistical bias is any deviation from the population parameter.

Repeatedly missing in 1 direction like they did with Amendment 1 is a sign of putting out nonsense.
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Joe Biden is your president. Deal with it.
diskymike44
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« Reply #22 on: June 06, 2012, 10:27:08 PM »


Poll that shows Romney ahead" Good news! we have a chance of taking america back from the commie!

Poll that shows Obama ahead "Trash poll!"
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Frozen Sky Ever Why
ShadowOfTheWave
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« Reply #23 on: June 06, 2012, 10:35:21 PM »


Poll that shows Romney ahead" Good news! we have a chance of taking america back from the commie!

Poll that shows Obama ahead "Trash poll!"

Trash poll is the automatic response of every dem hack on these boards to a Rasmussen poll.
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Devils30
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« Reply #24 on: June 06, 2012, 10:49:23 PM »

The poll they do for the daily kos tends to be more Dem leaning than the ones they publish on their website.
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