this post was submitted on 13 May 2024
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[–] assassin_aragorn@lemmy.world 100 points 1 year ago* (last edited 1 year ago) (26 children)

I dislike doubting polls, but there's just some odd stuff in here.

  • 10% go for RFK Jr, and it's equal siphoning from both parties? 10%?!
  • 20% more people blame Biden for Roe being overturned than Trump?
  • They're TIED with Gen Z voters? TIED?!
  • After the absolute thrashing that Republicans have received on abortion, only like 50% of women would break for Biden?

This is a poll of just the 5 key states, but this part of their methodology gives me significant pause as well: "To further ensure that the results reflect the entire voting population, not just those willing to take a poll, we give more weight to respondents from demographic groups underrepresented among survey respondents, like people without a college degree. "

Emphasis mine. There could be a huge skew. And these results don't make sense. The other NYT poll from several months ago was also incredibly unusual and had very weird findings -- to the point that the Guardian wrote something was very fucky with the results.

This isn't to say this can't be what's going on, but we need corroboration from other polling groups. And it isn't summer yet, which makes polls rather inaccurate too.

TLDR: Something's fucky, we need more information and to monitor this.

EDIT: I just want to use my bully pulpit here to say that my criticisms by no means disprove the poll results. There's oddities, but that doesn't make the results an impossibility. Don't only give credence to criticism of polls. If someone has reasons they believe the poll is accurate, you should give equal attention to it. At the end of the day, we don't know what the actual truth is, and we won't until the election is over. Just remember that we don't want to just win, we want to dominate. We want massive margins. And that means we need to see wins even in less than accurate polls.

[–] TropicalDingdong@lemmy.world 6 points 1 year ago* (last edited 1 year ago) (10 children)

If you've been following the polling there is nothing different or unique about this one. It's consistent with pretty much all polling over the past 400 days. Biden is losing. Polling is definitely still broken, but it's consistent. There is no fuckery.

Biden needs to be up by 4-12 in those states if he wants to win.

See my posts in !data_vizualisations@lemmy.world . I make a map of the offset in polling Biden needs to win a given state based on the fact that polls consistently overestimate how well Biden will do, and underestimate how well Trump will do.

When you see these poll numbers, you should subtract 4 for Biden, and add 8 for Trump. That was the offsets we observed from the 2020 election.

So keeping in mind data you already have about Trump, Biden, polling and it's departure from real election results, it's not even a question. Mortgage you house and out all your money on Trump to win. You have a differential polling error of 12 points in a Biden Trump head to head. Biden needs to be in the mid to high fifties across the board to have a chance.

He's in the low forties.

If you don't end up clicking the link: Relative polling error for Biden V Trump, 2020.

[–] assassin_aragorn@lemmy.world 11 points 1 year ago (4 children)

This is quite interesting, thanks for sharing!

My only critique is that I don't think 2020 skew is valid anymore. After Dobbs, the landscape seems to have significantly changed. 2022 was predicted to favor Republicans by a strong margin, but it ended up being a tie pretty much. And a lot of special elections have had surprising results too.

My personal opinion is that polling methodology may have overcorrected for 2020, and we're getting a picture now that's skewed right, versus left from beforehand.

It's really hard to say though. There weren't a lot of great polls to start with in 2022, and special elections don't have significant polling either. It's a weird position where the only good data set we have is from 2020, but there have been so many changes in the national environment that we have reason to doubt the skews from 2020 are still valid. But at the same time, what else do we have? Vibes and feelings and anecdotes. And the engineer in me dislikes dismissing data in favor of vibes. It's important to consider still I think, because none of this is infallible. But I honestly couldn't tell you what the "right" outlook to have is. Maybe I'm onto something, but maybe I'm just letting optimism bleed into my better judgement.

All I know is that I don't know.

[–] mozz@mbin.grits.dev 8 points 1 year ago* (last edited 1 year ago) (1 children)

My personal opinion is that polling methodology may have overcorrected for 2020, and we're getting a picture now that's skewed right, versus left from beforehand.

I won't say that you're wrong about what the pollsters are doing -- but to me this strikes me as very obviously the wrong way to do it.

If you find out your polls were wrong, and then instead of digging into detail as to what exactly went wrong, and then fixing the methodology going forward, using non-phone polls, doing a more accurate calculation to make sure you're weighting the people who are going to vote and not the people who aren't going to vote, things like that … you just make up a fudge factor for how wrong the polls were last time, and assume that if you just add that fudge factor in then you don't have to fix all the things that went wrong on a more fundamental level, that seems guaranteed to keep being wrong for as long as you’re doing it.

Again I won't say you're wrong about how they're going about it. (And, I'm not saying it's necessarily easy to do or anything.) But I think you've accurately captured the flaw in just adding a fudge factor and then assuming you'll be able to learn anything from the now-corrected-for-sure-until-next-time-when-we-add-in-how-wrong-we-were-this-time answers.

[–] assassin_aragorn@lemmy.world 3 points 1 year ago

That's the thing, we don't know how they're correcting for it, and if it is just a fudge factor. The issue is there's more confounding factors that anyone could list which could be the culprit here.

A fudge factor is easy, but the wrong solution here. But the right solution is incredibly complex and difficult to even identify. In my field we can get away with using a timer instead of a precise calculation sometimes. That really isn't an option for polls. I don't favor the people trying to fix the models.

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