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World The “shy Trump voters” debate, explained

00:40  02 november  2020
00:40  02 november  2020 Source:   vox.com

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Just 20 percent of Trump voters with mostly Biden-backing neighbors say those neighbors would be surprised by their support for Trump. This doesn’t disprove the existence of shy Trump voters . But the reality is that few Trump supporters are surrounded by Democrats with whom they would need to

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While visiting a farm in Loudon County, Virginia, on Saturday, I met several gentlemen wearing Trump gear and eager to discuss the election with strangers. They explained while polling looks bad for President Donald Trump, that his polling was basically the same in 2016 (not true), that Trump voters were less likely to answer phone surveys, and that therefore Trump is underrated in the polls.

a group of people on a beach: Supporters of President Trump gather for a boat parade on Lake Mead in Nevada, September 12. © Ethan Miller/Getty Images Supporters of President Trump gather for a boat parade on Lake Mead in Nevada, September 12.

These gentlemen were nice enough, but weren’t exactly right. But they aren’t alone in their beliefs, leading to a discourse around whether or not so-called “shy Trump voters” are distorting the polling. And that discourse gets confused in part because the premise of the Shy Trump Voters thesis contains a measure of truth.

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If there ARE significant numbers of “ shy ” Trump voters out there, some will still answer the surveys and even if they’re not willing to support Trump In other words, unless EVERY “ shy ” Trump voter is avoiding ALL polls, you’d expect to see the Senate GOP candidates generally outperforming Trump.

Are these shy Trump voters ? Trump ended up winning the state 47.2–46.5. Other pollsters also find that Biden has a higher level of Wisconsin support than Clinton did in 2016, and that there are fewer undecided and third-party voters.

There are demographic attributes that correlate with both Trump voting and with non-response to polls, and if pollsters are careless with their work, this could lead them to underrate Trump.

That being said, there are a lot of things pollsters can do that, if they are careless, would lead them to underrate Democratic presidential nominee Joe Biden. And “shyness” per se is almost certainly not the attribute that’s actually of interest here. Trump fans are rather infamously vocal about their support for the president, and he boasts bigger rallies, more garish hats, more boat parades, and other visible signs of support than Biden does.

The real issue isn’t “Are there potential distortions in survey response?” because there clearly are. It’s “Do pollsters adjust for these distortions?” And even more to the point, it’s “Is there reason to believe their methodological failures are systematically biased in one direction?”

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So this might, in theory, explain why Trump is trailing fairly badly to Joe Biden in the polls. I'm a little bit skeptical, and I think a lot of political analysts are skeptical that there are shy Trump voters left. I mean, first of all look, at all the rallies, the MAGA rallies and everything else we see.

The fact that only a few “shy voters ” said they misled pollsters (and by extension the media) due to their own “malicious intent” (number six) surprised me. Despite my own history of malicious intent, I’m still surprised by the results. As recently as last week, I laid out why I didn’t believe in the “ shy Trump

The answer to that latter question is basically no. Polling errors happen, and while a polling error of the scale needed to generate a Trump win would be unusual, it’s not out of the question. But a similarly sized polling error could happen in the other direction, too. Pollsters make mistakes, but they’re not incompetent.

How polling doesn’t work, explained

The most basic way to conduct a telephone poll of American public opinion would be to generate a few thousand random phone numbers, call everyone on the list, and ask the people who answer who they are planning to vote for.

Election polling of the past really did, more or less, work like that, which is one reason that the margin of error has traditionally loomed so large in reporting on polls, and in polling itself. As you may dimly remember from a high school statistics class, a relatively small random sample of a much larger group of people can give you a fairly accurate estimate of what the larger group is like. And there’s a formula you can use that relates the size of your sample to the reliability of your estimate — thus allowing you to generate a 95 percent confidence interval and a margin of error that surrounds it.

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The findings once again highlight whether " shy " Trump voters were undercounted in polling data prior to the 2016 election, which his The association also explained that while those who admit changing their minds normally break evenly between the Republican and Democratic candidates, people who

Donald Trump won the presidential election despite polls that indicated Hillary Clinton was favored. One popular explanation for this is that some people But the study found that the voters most likely to lie to pollsters were those with college degrees. So under the “ shy Trump ” theory, we’d expect to

But in the modern world, the problem you will have if you try to conduct a poll by calling random people has nothing to do with sampling error and everything to do with the fact that few people will answer the phone. Poll response rates have plummeted in recent years to the point where you need to dial over 15,000 phone numbers to get 950 responses.

chart, line chart © Provided by Vox.com

Worse for pollsters, the group of people who do answer the phone is going to be a non-random slice of the population. Young people, people of color, people who do not speak English as their first language, and people with lower levels of education are all much less likely to answer surveys.

The only slight saving grace of a random phone poll will be that, in partisan terms, these biases somewhat offset each other. But if you think in terms of local geographies, you’ll see that poll is going to be way off. In an overwhelmingly white, more educated state like Maine, you’ll be massively biased toward Democrats because of the educational skew. In a less educated, but ethnically diverse state like Nevada, you’ll be biased toward Republicans because of the racial skew. If you happened to get the national numbers right, that would be a lucky coincidence.

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Donald Trump voters should give up and not even bother to vote. Biden has this thing in the bag. He’s winning all the battleground states. Two California pollsters believe there are a lot more shy Trump voters out there than anyone is saying. And they give the reasons why they think that’s true.

Larry Schweikart has an interesting article at undercoverdc, but I'm going to link to it also at FR, because I found it easier to read at FR--see which suits you best: Ignore The Polls? These are Important.

So this is not actually how modern pollsters do things.

Modern polls are based on models of the electorate

A more sophisticated approach to the problem starts with a model of what the electorate should look like, and then “weights” the poll responses to fit the model. For example, suppose you have good reason to believe (from the census, say) that the electorate should be 12 percent Black but only 8 percent of your survey respondents are Black. Then you can “increase the weight” of the Black respondents so that each of them counts more than a non-Black respondent would. You could fiddle like this to weight up Black, Latino, and young respondents, and to weight down old white people.

This is where things went awry in 2016. If you weight by race and by age but not by educational attainment, then you end up correcting two pro-Republican biases while leaving out the anti-Republican bias of educational attainment.

Many pollsters did this in their 2016 state polls, and as a result ended up badly underestimating Trump. That’s not because Trump voters are “shy” — the vast majority of people of all types don’t answer polls these days. It’s because pollsters deal with non-response by doing a lot of weighting and modeling, so poll accuracy is increasingly a function of how well you design your model.

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State polling is really hard

It’s easy to say, “Well, they should have weighted for education” (and indeed they should have), but it’s worth reflecting on the fact that these weighting decisions are difficult. Some pollsters, for example, weight based on party identification, which could be a useful master control on your sample. On the other hand, you might think that doing that, in effect, rules out large changes in public opinion — you won’t detect a sharp swing against the Republican Party in Texas if you insist, as a matter of definition, that most of the Texas electorate has to be Republicans.

Should you weight for religious observance? For denomination? We know that a white person who goes to church weekly is way more likely to be a Republican than one who never attends services. But the relationship goes the other way if you’re talking about a Black person who affiliates with a Black church (but not another kind of church). We also know that subgroups matter. If it happens to be the case that half the Latinos in your sample are Cuban, that will bias your result — all the more so if you end up weighting them up due to a small overall number of Latinos.

Critically, these problems are more intense when you’re talking about state-level polling than national polling, because the little state idiosyncrasies matter more.

In a broad national sample the fact that, say, Mormons or Jews vote differently from other white people sort of comes out in the wash. But in the handful of states where LDS adherents are a large share of the population (like Arizona), then it can matter a great deal. When you try to poll states that don’t get polled a lot (Alaska, for example) then you are faced with the problem that there isn’t much track record of different weighting concepts — you’re just sort of guessing how to weight.

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The most advanced phone polls try to gain a leg up on the competition by starting not with a set of random digits, but by acquiring a list of registered voters. That lets you weight based on party registration — an objective variable that’s obviously politically relevant — but this costs money, and it’s not possible in every state. These days, more and more pollsters aren’t doing phone polls at all. Instead, they do surveys online or via text message with respondents who’ve agreed to be surveyed in exchange for money. This is a non-random group, but since phone polling is so model-intensive to begin with, these days a well-designed online poll can outperform a phone poll.

All of this means that crafting accurate state-level polls is very difficult and nobody should be shocked that it goes awry sometimes. But “the polls might be wrong” is a very different claim from “there is a specific reason to believe the polls are underrating Trump.” These days, for example, almost all well-regarded pollsters do weight by education.

It’s not clear polls have been “fixed”

We can say with some confidence that pollsters will not make literally the exact same methodological mistake they made in 2016. But some people familiar with the education weighting issue have jumped too hastily to assuming that the polls have been “fixed” since Trump’s initial victory.

When Nate Cohn, of the New York Times, surveyed state-level poll accuracy in the wake of the 2018 midterms, he found that on average the polls had become more accurate.

But in states where the polls overestimated Clinton, they also tended to overestimate Democrats in 2018, and vice versa. National polling, in both years, was more accurate. The 2018 race was largely focused on the House of Representatives, so the state-level polling errors didn’t seem like a huge deal psychologically. Democrats underperformed here and there and disappointed themselves, but also overperformed massively in California and made up for it by winning some surprise seats out west. In the Electoral College, of course, underperforming the polls in Pennsylvania and Florida (as Democrats did in both 2016 and 2018) and making it up in California would not be so benign.

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All that said, just because the polls underestimated Republicans in Pennsylvania two elections in a row doesn’t mean they’ll do it a third time. The size of the polling error there did shrink between 2016 and 2018, and pollsters may have successfully shrunk it down to zero. Or they may end up overcorrecting and have an error in the other direction, underestimating Democrats. Either way, there is no specific empirical or theoretical basis for believing that the polls are skewed in favor of Biden — they certainly might be skewed — but the professional pollsters are aware of potential biases and mostly try to correct for them.

Perhaps even more important, Biden’s polling lead is just really large at this point. The polls could be off badly and he might win anyway.

Trump is down by a lot

Right now Biden is up by 6 percentage points in Pennsylvania polling averages.

That means that if the Pennsylvania polls are exactly as inaccurate as they were in 2016, he’d win Pennsylvania by 1 percentage point. He’d also carry Michigan and Wisconsin by 4 points each, and Arizona by 2 points.

And because the 2016 poll errors in Georgia and Florida were much more modest, Biden’s narrow 2-point edges in those state poll averages would simply translate into narrow 1-point wins. If the election ended up playing out that way, we’d likely end up remembering it as a solid Biden win and forgetting all the fuss about polling errors. Nonetheless, particularly in the key Great Lakes states, these would actually be big polling errors.

The reason Hillary Clinton didn’t bother to campaign in Wisconsin is that the polls there were off by a staggering 6 percentage points. If Biden ends up winning there by 4 percentage points rather than by 10, that will still be a huge error — it’s just that nobody will care.

To win the election at this point, Trump doesn’t just need the polling error to be in his favor again — he needs it to be giant, since Biden’s lead is bigger than Clinton’s was. Alternatively, he needs to narrowly eke out a win in Florida (which would only require a small poll error) and try to get the courts to invalidate mail votes in the Great Lakes.

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We need to talk about the white people who voted for Donald Trump .
As the media picks apart the voting trends of people of color, it must not ignore the big constant.In 2016, white voters propelled Trump to the presidency, with 54 percent voting for him and 39 percent voting for Hillary Clinton, according to a 2018 Pew Research Center study.

usr: 0
This is interesting!