To me it seems that polls are not getting better.
It's the job of sites like
538 to sort trough all of the polls, weight them correctly and make an overall prediction.
So 538 did a good job, despite polls being off. They gave Biden 90% of the probability - and that 90% included scenarios like the one we had now (polls being off). They did a good job even in 2016, to be honest.
I've been following them all trough election process and they were pretty much spot on. Credit where it's due. They have some serious statisticians and quants.
That's why I was surprised how some people actually predicted a Trump win. Like it could happen (still can, perhaps) but it was undoubtedly the less likely outcome. I think it was more a hope/wish than an unbiased prediction.
Yes, I agree. When I say pollsters, I mean people like Nate Silver and 538. Not the physical polling through interviews, etc. The business of political polling which now includes statistical modeling.
Personally, I did not like Nate Silver’s explanation for the 2016 f* up. Though I agree he addressed it (partially) in the modeling in 2020.
I think in 2016, most models did not accurately incorporate a change in people’s opinions after James Comey cast doubt on “her emails!” days before the election.
It would have been impossible to do so. Which is why when you look at something like the vaccine trials going on right now, anytime an anomaly comes up in a patient, the whole process stops. Until the drug companies can isolate and measure what’s happened.
No one could’ve done that in 2016 and that’s what 538 should’ve been upfront about. Not be all like, we’re totally 99% accurate. They took a randomized poll after the Comey announcement, but that’s insufficient to gauge things.
Trump voters who changed their minds were like, you don’t know how I think. Die hard Trump voters were like, see I knew you “coastal elites” were wrong this whole time. So, Trump’s campaign leans into the “they’re wrong, they’re out of touch, only you know what’s what - nudge nudge, wink wink” narrative and messaging.
Also, leading up to the 2020 election, they tried to replicate what happened in 2016 with the whole October surprise and “his emails!!!” bit. In case anyone was wondering what that was all about.
As for for how there could people predicting a Trump win, I mean, both sides have the same models...
I didn’t really follow the 538 models this time, though I agree they did a good job playing out possible paths and all that. They are now updating their simulation models using fatter distribution tails, so that’ll help improve the models further.