{"id":1655,"date":"2020-05-05T12:00:08","date_gmt":"2020-05-05T16:00:08","guid":{"rendered":"https:\/\/connect.apsanet.org\/raisethevote\/?p=1655"},"modified":"2020-05-06T10:24:29","modified_gmt":"2020-05-06T14:24:29","slug":"what-you-need-to-know-about-election-polls","status":"publish","type":"post","link":"https:\/\/connect.apsanet.org\/raisethevote\/2020\/05\/05\/what-you-need-to-know-about-election-polls\/","title":{"rendered":"What You Need To Know About Election Polls"},"content":{"rendered":"<p><span data-contrast=\"auto\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-18911 alignleft\" src=\"https:\/\/politicalsciencenow.com\/wp-content\/uploads\/2019\/08\/Loepp.Headshot-245x300.png\" alt=\"\" width=\"245\" height=\"300\" \/>Th<\/span><span data-contrast=\"auto\">e surprising outcome of the 2016 presidential election\u00a0<\/span><span data-contrast=\"auto\">led<\/span><span data-contrast=\"auto\">\u00a0many people to question the\u00a0<\/span><span data-contrast=\"auto\">credibility of public opinion polling. That\u2019s a fair question, considering so many polls suggested Hillary Clinton would win the election.\u00a0<\/span><a href=\"https:\/\/thehill.com\/blogs\/pundits-blog\/campaign\/315145-one-last-look-2016-polls-actually-got-a-lot-right\"><span data-contrast=\"none\">Twelve of the thirteen<\/span><\/a><span data-contrast=\"auto\">\u00a0final national polls predicted a Clinton victory. I<\/span><span data-contrast=\"auto\">ndeed,\u00a0<\/span><span data-contrast=\"auto\">some<\/span><span data-contrast=\"auto\">\u00a0forecasters<\/span><span data-contrast=\"auto\">\u00a0pegged her chances of winning at\u00a0<\/span><a href=\"https:\/\/www.reuters.com\/article\/us-usa-election-poll\/clinton-has-90-percent-chance-of-winning-reuters-ipsos-states-of-the-nation-idUSKBN1322J1\"><span data-contrast=\"none\">ninety percent<\/span><\/a><span data-contrast=\"auto\">, or even<\/span><span data-contrast=\"auto\">\u00a0<\/span><a href=\"https:\/\/www.independent.co.uk\/news\/world\/americas\/sam-wang-princeton-election-consortium-poll-hillary-clinton-donald-trump-victory-a7399671.html\"><i><span data-contrast=\"none\">ninety-nine<\/span><\/i><span data-contrast=\"none\">\u00a0percent<\/span><\/a><span data-contrast=\"auto\">.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h3><span data-contrast=\"auto\">So what went wrong with those polls? <\/span><\/h3>\n<p><span data-contrast=\"auto\">The truth is<\/span><span data-contrast=\"auto\">,<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">for the most part, the polls were actually right!<\/span><span data-contrast=\"auto\">\u00a0National polls suggested Hillary Clinton would have a\u00a0<\/span><span data-contrast=\"auto\">three<\/span><span data-contrast=\"auto\">-percentage-point lead over Donald Trump. <\/span><span data-contrast=\"auto\">In reality, she finished with a\u00a0<\/span><a href=\"https:\/\/thehill.com\/blogs\/pundits-blog\/campaign\/315145-one-last-look-2016-polls-actually-got-a-lot-right\"><span data-contrast=\"none\">two<\/span><span data-contrast=\"none\">-point lead nationally<\/span><\/a><span data-contrast=\"auto\">. That\u2019s not bad when we consider the myriad challenges\u00a0<\/span><span data-contrast=\"auto\">pollsters face as they try to capture the mood of an erratic public. True, sometimes pollsters err. But often polls appear wrong because we inter<\/span><span data-contrast=\"auto\">pret them incorrectly. It is on all of us as citizens\u00a0<\/span><span data-contrast=\"auto\">to familiarize\u00a0<\/span><span data-contrast=\"auto\">ourselves<\/span><span data-contrast=\"auto\">\u00a0with how polls work,\u00a0<\/span><span data-contrast=\"auto\">and what they can and cannot tell us.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<blockquote><p>A slightly blurry photograph can still capture the general scene and the direction of the object, but the image will not perfectly reflect what is actually happening, nor necessarily what will happen. Polls are similar\u2014they give us a fairly clear perspective on a given issue at a given time, but things can and do change.<\/p><\/blockquote>\n<p><span data-contrast=\"auto\">Here\u2019s the most important thing to remember about election polls: they\u00a0<\/span><span data-contrast=\"auto\">are<\/span><span data-contrast=\"auto\">\u00a0n<\/span><span data-contrast=\"auto\">ot instruments of prediction<\/span><span data-contrast=\"auto\">.<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">Instead,\u00a0<\/span><span data-contrast=\"auto\">think of them as<\/span><span data-contrast=\"auto\">\u00a0slightly blurry photographs<\/span><span data-contrast=\"auto\">\u00a0of an object in motion<\/span><span data-contrast=\"auto\">.\u00a0<\/span><span data-contrast=\"auto\">The<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">photograph tells us what is happening in\u00a0<\/span><span data-contrast=\"auto\">one particular<\/span><span data-contrast=\"auto\">\u00a0moment, at\u00a0<\/span><span data-contrast=\"auto\">one\u00a0<\/span><span data-contrast=\"auto\">particular time.<\/span><span data-contrast=\"auto\">\u00a0A slightly blurry photo<\/span><span data-contrast=\"auto\">graph<\/span><span data-contrast=\"auto\">\u00a0can still capture the general scene<\/span><span data-contrast=\"auto\">\u00a0and the direction of the object<\/span><span data-contrast=\"auto\">, but the image will not perfectly reflect what is actually happening<\/span><span data-contrast=\"auto\">, nor necessarily what\u00a0<\/span><i><span data-contrast=\"auto\">will<\/span><\/i><span data-contrast=\"auto\">\u00a0happen<\/span><span data-contrast=\"auto\">. Polls are\u00a0<\/span><span data-contrast=\"auto\">similar\u2014t<\/span><span data-contrast=\"auto\">hey give us a fairly clear perspective on a given issue at a given time<\/span><span data-contrast=\"auto\">, b<\/span><span data-contrast=\"auto\">ut things can and do change.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<p><span data-contrast=\"auto\">To be better consumers of polls in 2020, it is helpful to look at what happen<\/span><span data-contrast=\"auto\">ed<\/span><span data-contrast=\"auto\">\u00a0in 2016. Let\u2019s consider some of the reason<\/span><span data-contrast=\"auto\">s polls appeared to miss the mark during t<\/span><span data-contrast=\"auto\">he last presidential election cycle.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<h3><b><span data-contrast=\"auto\">W<\/span><\/b><b><span data-contrast=\"auto\">hy might polls be off?<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h3>\n<ul>\n<li><b><span data-contrast=\"auto\">The\u00a0<\/span><\/b><b><span data-contrast=\"auto\">science<\/span><\/b><b><span data-contrast=\"auto\">\u00a0of sampling<\/span><\/b><b><span data-contrast=\"auto\">.<\/span><\/b><span data-contrast=\"auto\">\u00a0A valid poll requires a representative sample. Imagine you polled 1,000 people from a population of 300,000,000. If the population is, say, 50.5% female, then your sample should be 50.5% female. If 34% of the population has a college degree, then 34% of your sample should have a college degree. The only way to get a representative sample is to give everyone in the population the same probability of being picked to participate in\u00a0<\/span><span data-contrast=\"auto\">a<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">poll.<\/span><span data-contrast=\"auto\">\u00a0This is extremely\u00a0<\/span><span data-contrast=\"auto\">difficult<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">to do<\/span><span data-contrast=\"auto\">. S<\/span><span data-contrast=\"auto\">ome groups are harder to reach than others, such as lower income\u00a0<\/span><span data-contrast=\"auto\">earners<\/span><span data-contrast=\"auto\">\u00a0who may n<\/span><span data-contrast=\"auto\">ot be as available to talk to a pollster<\/span><span data-contrast=\"auto\">.\u00a0<\/span><span data-contrast=\"auto\">In addition, some people may simply be less willing to answer the phone than others.\u00a0<\/span><span data-contrast=\"auto\">Issues like<\/span><span data-contrast=\"auto\">\u00a0<\/span><a href=\"https:\/\/www.pewresearch.org\/fact-tank\/2016\/11\/09\/why-2016-election-polls-missed-their-mark\/\"><span data-contrast=\"none\">non-response bias<\/span><\/a><span data-contrast=\"auto\">\u00a0can spoil th<\/span><span data-contrast=\"auto\">e representativeness of a poll, and lead to nearly all<\/span><span data-contrast=\"auto\">\u00a0survey<\/span><span data-contrast=\"auto\">s<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">being<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">off a little bit, no matter how good the pollster is.<a href=\"#_ftn1\" name=\"_ftnref1\"><sup>[1]<\/sup><\/a><\/span><\/li>\n<\/ul>\n<ul>\n<li><b><span data-contrast=\"auto\">Respondents may not be entirely truthful<\/span><\/b><b><span data-contrast=\"auto\">.<\/span><\/b><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">A representative sample<\/span><span data-contrast=\"auto\">\u00a0is no good if people do not tell the truth. In 2016, many\u00a0<\/span><span data-contrast=\"auto\">observers<\/span><span data-contrast=\"auto\">\u00a0thought there was a sizable number of voters who\u00a0<\/span><a href=\"https:\/\/www.washingtonpost.com\/news\/monkey-cage\/wp\/2016\/11\/12\/there-may-have-been-shy-trump-supporters-after-all\/\"><span data-contrast=\"none\">supported Donald Trump but did not want to admit it.<\/span><\/a><span data-contrast=\"auto\">\u00a0While most of the subsequent analysis showed this \u201cshy Trump<\/span><span data-contrast=\"auto\">\u00a0voters<\/span><span data-contrast=\"auto\">\u201d\u00a0<\/span><span data-contrast=\"auto\">phenomenon<\/span><span data-contrast=\"auto\">\u00a0had\u00a0<\/span><a href=\"https:\/\/fivethirtyeight.com\/features\/shy-voters-probably-arent-why-the-polls-missed-trump\/\"><span data-contrast=\"none\">little or no impact<\/span><\/a><span data-contrast=\"auto\">\u00a0on the election, the broader\u00a0<\/span><span data-contrast=\"auto\">point is very important: humans are\u2026well, human, and that includes not always being honest.\u00a0<\/span><span data-contrast=\"auto\">For example, p<\/span><span data-contrast=\"auto\">eople often\u00a0<\/span><span data-contrast=\"auto\">overreport<\/span><span data-contrast=\"auto\">\u00a0their tendency to engage in \u201cgood\u201d behaviors like voting or donating to charity. This is why<\/span><span data-contrast=\"auto\">\u00a0the\u00a0<\/span><a href=\"https:\/\/www.pewresearch.org\/fact-tank\/2016\/03\/10\/many-americans-say-they-voted-but-did-they\/\"><span data-contrast=\"none\">number of people who\u00a0<\/span><i><span data-contrast=\"none\">say<\/span><\/i><span data-contrast=\"none\">\u00a0they voted often outpaces the number of people who actually did<\/span><\/a><span data-contrast=\"auto\">.\u00a0<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li><b><span data-contrast=\"auto\">Election circumstance change quickly<\/span><\/b><b><span data-contrast=\"auto\">.<\/span><\/b><span data-contrast=\"auto\">\u00a0Rememb<\/span><span data-contrast=\"auto\">er, polls are snapshots in time; the image can change quickly if you take the same picture the next day. In 2016, many voters made up their mind in the last few days before the election. Roughly\u00a0<\/span><a href=\"https:\/\/www.aapor.org\/Education-Resources\/Reports\/An-Evaluation-of-2016-Election-Polls-in-the-U-S.aspx\"><span data-contrast=\"none\">13 percent of voters<\/span><\/a><span data-contrast=\"auto\">\u00a0in key battleground states of Wisconsin, Florida, and Pennsylvania made their decision in the last week before Election Day. Late-deciders broke for Donald Trump by a full 30 points in Wisconsin, and by 17 points in Florida and Pennsylvania. Therefore, even if a poll is representative and people\u00a0<\/span><span data-contrast=\"auto\">are<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">truthful, their answer in the poll may not align with what they\u00a0<\/span><span data-contrast=\"auto\">do<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">in the voting booth.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<h3><b><span data-contrast=\"auto\">How to be an expert poll consumer in 2020<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">Do all these challenges render polls meaningless? Absolutely not. The problem isn\u2019t that polls are inherently bad<\/span><span data-contrast=\"auto\">,<\/span><span data-contrast=\"auto\">\u00a0it\u2019s that they are inherently biased<\/span><span data-contrast=\"auto\">.<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">Polls<\/span><span data-contrast=\"auto\">\u00a0contain error that is rarely put into\u00a0<\/span><span data-contrast=\"auto\">perspective<\/span><span data-contrast=\"auto\">\u00a0on television, at a bar, or around the dinner table. To get the most out of the polls in 2020,\u00a0<\/span><span data-contrast=\"auto\">we need to put their results in context. Here are some steps that will help you do so.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<ul>\n<li><b><span data-contrast=\"auto\">Think local: focus<\/span><\/b><b><span data-contrast=\"auto\">\u00a0on key swing state polls<\/span><\/b><b><span data-contrast=\"auto\">.<\/span><\/b><span data-contrast=\"auto\">\u00a0National polls are interesting, and\u00a0<\/span><span data-contrast=\"auto\">it\u2019s true whichever candidate they show in the lead<\/span><span data-contrast=\"auto\">\u00a0usually wins the election<\/span><span data-contrast=\"auto\">.<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">B<\/span><span data-contrast=\"auto\">ut<\/span><span data-contrast=\"auto\">,<\/span><span data-contrast=\"auto\">\u00a0remember that presidents are not picked via national popular vote. Instead, the president is determin<\/span><span data-contrast=\"auto\">ed by combining the results of\u00a0<\/span><span data-contrast=\"auto\">50<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">state elections (plus DC) across the country. Thus<\/span><span data-contrast=\"auto\">,<\/span><span data-contrast=\"auto\">\u00a0n<\/span><span data-contrast=\"auto\">ational polls\u00a0<\/span><span data-contrast=\"auto\">are\u00a0<\/span><span data-contrast=\"auto\">not<\/span><span data-contrast=\"auto\">\u00a0tracking statistics that\u00a0<\/span><span data-contrast=\"auto\">reflect how votes are actually counted<\/span><span data-contrast=\"auto\">.<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">So it is a good idea to<\/span><span data-contrast=\"auto\">\u00a0f<\/span><span data-contrast=\"auto\">ocus on\u00a0<\/span><i><span data-contrast=\"auto\">state<\/span><\/i><span data-contrast=\"auto\">\u00a0polls in\u00a0<\/span><span data-contrast=\"auto\">key<\/span><span data-contrast=\"auto\">\u00a0swing states<\/span><span data-contrast=\"auto\">\u00a0like Wisconsin, Michigan, and Pennsylvania. We know how most states will vote this November. Polls are most helpful in understanding the ones we do not.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li><b><span data-contrast=\"auto\">F<\/span><\/b><b><span data-contrast=\"auto\">ind that margin of error.<\/span><\/b><span data-contrast=\"auto\">\u00a0Because all polls have a high probability of being at least slightly inaccurate, they must include a margin of error. This is basically a prediction of how \u201coff\u201d your poll might be. For example, imagine you a see poll on the news that shows Joe Biden has the support of 52% of voters and Donald Trump has the support of 48% of voters. Somewhere on the screen you should see the margin<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">of<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">error. Let\u2019s say it is 3% in our example. Add and\u00a0<\/span><span data-contrast=\"auto\">subtract<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">this\u00a0<\/span><span data-contrast=\"auto\">error<\/span><span data-contrast=\"auto\">\u00a0to the results for both candidates<\/span><span data-contrast=\"auto\">\u00a0to create a range of number<\/span><span data-contrast=\"auto\">s<\/span><span data-contrast=\"auto\">. For Biden, this range is 49%\u00a0<\/span><span data-contrast=\"auto\">(52-3)\u00a0<\/span><span data-contrast=\"auto\">to 5<\/span><span data-contrast=\"auto\">5<\/span><span data-contrast=\"auto\">%<\/span><span data-contrast=\"auto\">\u00a0(52+3)<\/span><span data-contrast=\"auto\">. For Trump, this range is 45% to 51%.\u00a0<\/span><span data-contrast=\"auto\">We can be confident that the true<\/span><span data-contrast=\"auto\">\u00a0percentage of supporters<\/span><span data-contrast=\"auto\">\u00a0for each candidate<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">lies within this range<\/span><span data-contrast=\"auto\">.\u00a0<\/span><span data-contrast=\"auto\">Our<\/span><span data-contrast=\"auto\">\u00a0<\/span><i><span data-contrast=\"auto\">best guess<\/span><\/i><span data-contrast=\"auto\"> is that 52% of the voters support Biden, but it is possible that the <\/span><i><span data-contrast=\"auto\">real<\/span><\/i><span data-contrast=\"auto\">\u00a0percentage may be<\/span><span data-contrast=\"auto\">\u00a0as low as 49% or has high as 55<\/span><span data-contrast=\"auto\">%.<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span>\n<ul>\n<li data-leveltext=\"o\" data-font=\"Courier New\" data-listid=\"2\" data-aria-posinset=\"1\" data-aria-level=\"2\"><span data-contrast=\"auto\">One other very important point: if the range for one candidate overlaps with the range of another candidate, the race is too close to call. That\u2019s what we see in our example: Biden\u00a0<\/span><span data-contrast=\"auto\">(49-55)\u00a0<\/span><span data-contrast=\"auto\">and Trump\u00a0<\/span><span data-contrast=\"auto\">(45-51)\u00a0<\/span><span data-contrast=\"auto\">overlap a bit. So even though it looks like Biden is ahead,<\/span><span data-contrast=\"auto\">\u00a0and he most likely is,<\/span><span data-contrast=\"auto\">\u00a0it is<\/span><span data-contrast=\"auto\">\u00a0still<\/span><span data-contrast=\"auto\">\u00a0<\/span><i><span data-contrast=\"auto\">possible<\/span><\/i><span data-contrast=\"auto\">\u00a0due to random sampling error that the candidates are\u00a0<\/span><span data-contrast=\"auto\">tied, or even that Trump is<\/span><span data-contrast=\"auto\">\u00a0winning. For an extended discussion, check out\u00a0<\/span><a href=\"https:\/\/www.pewresearch.org\/fact-tank\/2016\/09\/08\/understanding-the-margin-of-error-in-election-polls\/\"><span data-contrast=\"none\">this primer<\/span><\/a><span data-contrast=\"auto\">\u00a0on the margin of error in election polls.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li><b><span data-contrast=\"auto\">Ignore small-sample polls.<\/span><\/b><span data-contrast=\"auto\">\u00a0The margin of error is directly related to sample size. The larger the sample, the smaller the error. Polls with fewer than 400 people\u00a0<\/span><span data-contrast=\"auto\">often\u00a0<\/span><span data-contrast=\"auto\">have margins of error<\/span><span data-contrast=\"auto\">\u00a0so large that they cannot reliably\u00a0<\/span><span data-contrast=\"auto\">detect<\/span><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">which candidate is leading in the race. Look for polls with at least the 800 people, preferably closer to\u00a0<\/span><span data-contrast=\"auto\">1,000-<\/span><span data-contrast=\"auto\">1,200. Remember, though, that polls must be\u00a0<\/span><i><span data-contrast=\"auto\">representative<\/span><\/i><span data-contrast=\"auto\">\u00a0to be any good. Pollsters will take a 1,000-person poll that is representative\u00a0<\/span><span data-contrast=\"auto\">over a 1<\/span><span data-contrast=\"auto\">0,000-person poll that is not representative any day of the week.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li><b><span data-contrast=\"auto\">Conduct<\/span><\/b><b><span data-contrast=\"auto\">\u00a0a \u201cpoll of polls.\u201d<\/span><\/b><span data-contrast=\"auto\">\u00a0A great way to minimize<\/span><span data-contrast=\"auto\">\u00a0the potential for an outlier<\/span><span data-contrast=\"auto\">\u00a0poll to overly influence your perception of the race is to look at polling\u00a0<\/span><i><span data-contrast=\"auto\">averages<\/span><\/i><span data-contrast=\"auto\">, rather than just individual polls. A number of websites aggregate<\/span><span data-contrast=\"auto\">\u00a0numerous<\/span><span data-contrast=\"auto\">\u00a0polls to create a running national average, such as\u00a0<\/span><a href=\"https:\/\/www.realclearpolitics.com\/epolls\/2020\/president\/us\/general_election_trump_vs_biden-6247.html\"><span data-contrast=\"none\">R<\/span><span data-contrast=\"none\">eal<\/span><span data-contrast=\"none\">C<\/span><span data-contrast=\"none\">lear<\/span><span data-contrast=\"none\">P<\/span><span data-contrast=\"none\">olitics<\/span><\/a><span data-contrast=\"auto\">\u00a0and\u00a0<\/span><a href=\"https:\/\/projects.fivethirtyeight.com\/polls\/president-primary-d\/national\/\"><span data-contrast=\"none\">FiveThirtyEight<\/span><\/a><span data-contrast=\"auto\">.<\/span><span data-contrast=\"auto\">\u00a0Remember, if you see a poll with a highly unusual finding, ask yourself:\u00a0<\/span><i><span data-contrast=\"auto\">why is only one poll finding this?<\/span><\/i><span data-contrast=\"auto\">\u00a0It is likely because the result is a function of the poll itself, not the reality it purports to measure.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<ul>\n<li><b><span data-contrast=\"auto\">Consider the source.<\/span><\/b><span data-contrast=\"auto\">\u00a0<\/span><span data-contrast=\"auto\">Unfortunately, some polling firms do better work than others<\/span><span data-contrast=\"auto\">.<\/span><span data-contrast=\"auto\">\u00a0Fortunately, there are ways to gauge firm quality: organizations\u00a0<\/span><span data-contrast=\"auto\">like FiveThirtyEight maintain\u00a0<\/span><a href=\"https:\/\/projects.fivethirtyeight.com\/pollster-ratings\/\"><span data-contrast=\"none\">\u201cPollster Ratings\u201d<\/span><\/a><span data-contrast=\"auto\">\u00a0to help you quickly identify if\u00a0<\/span><span data-contrast=\"auto\">a<\/span><span data-contrast=\"auto\">\u00a0pol<\/span><span data-contrast=\"auto\">ling source is a reputable one. In a similar vein, remember tha<\/span><span data-contrast=\"auto\">t<\/span><span data-contrast=\"auto\">\u00a0media pundits of\u00a0<\/span><span data-contrast=\"auto\">various<\/span><span data-contrast=\"auto\">\u00a0political persuasions may focus more on polls that sho<\/span><span data-contrast=\"auto\">w results they find favorable to their political side. Such polls may be outliers. The solution: consume a variety of media, consider numerous sources, and follow the polling aggregators.<\/span><span data-ccp-props=\"{&quot;134233279&quot;:true,&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/li>\n<\/ul>\n<h3><b><span data-contrast=\"auto\">Putting polls in perspective<\/span><\/b><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/h3>\n<p><span data-contrast=\"auto\">Many\u00a0<\/span><span data-contrast=\"auto\">critics\u00a0<\/span><span data-contrast=\"auto\">of polling\u00a0<\/span><span data-contrast=\"auto\">in the<\/span><span data-contrast=\"auto\">\u00a02016\u00a0<\/span><span data-contrast=\"auto\">election\u00a0<\/span><span data-contrast=\"auto\">unfairly indicted polling\u00a0<\/span><i><span data-contrast=\"auto\">itself<\/span><\/i><span data-contrast=\"auto\">\u00a0as a dubious enterprise<\/span><span data-contrast=\"auto\">. Sure, pollsters made some errors, but the truth is\u00a0<\/span><span data-contrast=\"auto\">perfect polling is nearly impossible to achieve:<\/span><span data-contrast=\"auto\">\u00a0representative samples are hard to get, respondents may not\u00a0<\/span><span data-contrast=\"auto\">report future behavior accurately (intentionally or otherwise)<\/span><span data-contrast=\"auto\">, and pollsters have to make best guesses\u00a0<\/span><span data-contrast=\"auto\">that do not always work out.\u00a0<\/span><span data-contrast=\"auto\">Therefore<\/span><span data-contrast=\"auto\">\u00a0it is\u00a0<\/span><span data-contrast=\"auto\">crucial<\/span><span data-contrast=\"auto\">\u00a0that we inform ourselves about what polls can and cannot tell us, to remember that they are attempting to capture the views of an American public that are constantl<\/span><span data-contrast=\"auto\">y evolving with new experiences, such as a global pandemic. In addition, remember that p<\/span><span data-contrast=\"auto\">olls are snapshots in time, not perfect predictors of events. Just as weather data can give us a decent sense of what the temperature will be tomorrow, sometimes those projections are a bit off. In an election,\u00a0<\/span><span data-contrast=\"auto\">being off a little bit<\/span><span data-contrast=\"auto\">\u00a0sometimes<\/span><span data-contrast=\"auto\">\u00a0means the candidate\u00a0<\/span><span data-contrast=\"auto\">\u201c<\/span><span data-contrast=\"auto\">behind<\/span><span data-contrast=\"auto\">\u201d<\/span><span data-contrast=\"auto\">\u00a0in the poll<\/span><span data-contrast=\"auto\">s<\/span><span data-contrast=\"auto\">\u00a0wins the race.<\/span><span data-ccp-props=\"{&quot;201341983&quot;:0,&quot;335559739&quot;:160,&quot;335559740&quot;:259}\">\u00a0<\/span><\/p>\n<hr \/>\n<p><a href=\"#_ftnref1\" name=\"_ftn1\"><sup>[1]<\/sup><\/a> Here are some more technical details: Scientific polls require researchers to make certain decisions, assumptions, and corrections regarding their samples and analyses. For instance, pollsters must determine which population of individuals to talk to. Many polls say they talk to \u201cAmerican adults\u201d or \u201cregistered voters\u201d or \u201clikely voters.\u201d But how do we define a \u201clikely voter?\u201d Someone who says they are going to vote? Someone who voted in the last election? The last three elections? Another issue pollsters must address is how to statistically adjust samples that suffer from a lack of representativeness. These corrections rely on educated assumptions that can sometimes be off. For instance, in 2016, many state polls did not adequately correct for an over-representation of highly educated voters. The result? These polls did not fully capture support for Donald Trump, who enjoyed support from many people with less formal education. Indeed, weighting surveys for education continues to be <a href=\"https:\/\/www.vox.com\/policy-and-politics\/2019\/11\/14\/20961794\/education-weight-state-polls-trump-2020-election\">tricky business<\/a>.<\/p>\n<p><em>Eric Loepp is a guest contributor for the <a href=\"https:\/\/connect.apsanet.org\/raisethevote\/\">RAISE the Vote Campaign<\/a>. The views expressed in the posts and articles featured in the RAISE the Vote campaign are those of the authors and contributors alone and do not represent the views of APSA.<\/em><\/p>\n<p><em><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\"><strong>Eric Loepp<\/strong> (Ph.D., University of Pittsburgh) is an assistant professor of political science at the University of Wisconsin-Whitewater, where he teaches courses in American government, political behavior, and research methods. His research focuses on candidate evaluation<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">s<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">\u00a0and electoral decision-making, particularly in primary elections. This work has been published in such journals as\u00a0<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">Electoral Studies<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">, the\u00a0<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">Journal of Elections, Public Opinion, &amp; Parties<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">,\u00a0<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">Research &amp; Politics<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">,\u00a0<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">American Politics Research<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">, and\u00a0<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">PS: Political Science &amp; Politics<\/span><\/span><span class=\"TextRun BCX0 SCXW67573362\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"><span class=\"NormalTextRun BCX0 SCXW67573362\">.<\/span><\/span><\/em><\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"WejTsrsc4h\"><p><a href=\"https:\/\/connect.apsanet.org\/raisethevote\/join-the-campaign\/\">Join the Campaign<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Join the Campaign&#8221; &#8212; RAISE the Vote Campaign | APSA\" src=\"https:\/\/connect.apsanet.org\/raisethevote\/join-the-campaign\/embed\/#?secret=nNnG5XILpO#?secret=WejTsrsc4h\" data-secret=\"WejTsrsc4h\" width=\"560\" height=\"315\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The surprising outcome of the 2016 presidential election\u00a0led\u00a0many people to question the\u00a0credibility of public opinion polling. That\u2019s a fair question, considering so many polls suggested Hillary Clinton would win the [&hellip;]<\/p>\n","protected":false},"author":42119,"featured_media":1437,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[195,205,127,141,30,196,396,4],"tags":[483,211,134,261],"class_list":["post-1655","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-2020-election","category-civic-education","category-election","category-election-reflections","category-polling","category-voter-education-and-engagement","category-voter-turnout","category-voting","tag-2016-presidential-election","tag-donald-trump","tag-hillary-clinton","tag-joe-biden"],"_links":{"self":[{"href":"https:\/\/connect.apsanet.org\/raisethevote\/wp-json\/wp\/v2\/posts\/1655","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/connect.apsanet.org\/raisethevote\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/connect.apsanet.org\/raisethevote\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/connect.apsanet.org\/raisethevote\/wp-json\/wp\/v2\/users\/42119"}],"replies":[{"embeddable":true,"href":"https:\/\/connect.apsanet.org\/raisethevote\/wp-json\/wp\/v2\/comments?post=1655"}],"version-history":[{"count":0,"href":"https:\/\/connect.apsanet.org\/raisethevote\/wp-json\/wp\/v2\/posts\/1655\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/connect.apsanet.org\/raisethevote\/wp-json\/wp\/v2\/media\/1437"}],"wp:attachment":[{"href":"https:\/\/connect.apsanet.org\/raisethevote\/wp-json\/wp\/v2\/media?parent=1655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/connect.apsanet.org\/raisethevote\/wp-json\/wp\/v2\/categories?post=1655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/connect.apsanet.org\/raisethevote\/wp-json\/wp\/v2\/tags?post=1655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}