The Backfire Effect: Why Facts Don’t Always Change Minds

The Backfire Effect


In a perfectly rational world, people who encounter evidence which challenges their beliefs would first evaluate this evidence, and then adjust their beliefs accordingly. However, in reality this is seldom the case.

Often, when people encounter evidence that should cause them to doubt their beliefs, they reject this evidence, and strengthen their support for their original stance. This occurs due to a cognitive bias known as the backfire effect.

In the following article, you will learn more about the backfire effect, understand why and when it influences people, and see what you can do in order to mitigate its influence.


What is the backfire effect

The backfire effect (sometimes referred to as the worldview backfire effect) is a cognitive bias that causes people who encounter evidence which challenges their beliefs to reject that evidence, and to strengthen their support of their original beliefs.

Essentially, the backfire effect means that showing people evidence which proves that they are wrong is often ineffective, and can actually end up backfiring, by causing people to support their original stance more strongly than they previously did.

As such, the backfire effect is a subtype of the confirmation bias, which is a cognitive bias that can cause people to interpret information in a way that confirms their preexisting beliefs.


What causes the backfire effect

The backfire effect occurs primarily as a result of the process through which people argue against information that challenges their beliefs.

Essentially, when people argue against unwelcome information strongly enough, they end up with more arguments to support their stance. This causes them to believe that there is more proof in support of their viewpoint than there was before they were presented with the unwelcome evidence, which can lead them to support their original stance more strongly than they did before.

Another factor which contributes to the backfire effect in some cases is the concept of familiarity. In essence, the more familiar a certain concept is, the more readily people remember it as true. Therefore, when an attempt to debunk a certain myth contains direct information about the myth itself, people often end up feeling more familiar with the myth, which can cause them to believe it more strongly.


Examples of the backfire effect

The backfire effect has been observed in a number of scientific studies, which looked at various scenarios:

  • A study which examined voting preference showed that introducing people to negative information about a political candidate that they favor, often causes them to increase their support for that candidate.
  • A study which examined misconceptions about politically-charged topics (such as tax cuts and stem-cell research), found that giving people accurate information about these topics often causes them to believe in their original misconception more strongly, in cases where the new information contradicts their preexisting beliefs.
  • A study which examined parents’ intent to vaccinate their children, found that when parents who are against vaccinating are given information showing why vaccinating their child is the best course of action, they sometimes become more likely to believe in a link between vaccination and autism.
  • A study which examined people’s intent to vaccinate against the flu, found that when people who thought that the vaccine is unsafe were given information disproving myths on the topic, they often ended up with a reduced intent to vaccinate.

Overall, the backfire effect influences people in many domains. It has a notable influence when it comes to people’s widespread support of various pseudoscientific beliefs, and it explains why attempts to debunk those beliefs are often ineffective, but it can also affect people when it comes to any type of belief.


How to reduce the backfire effect

Reducing other people’s backfire effect

The backfire effect is a cognitive bias, meaning that you can use general debiasing strategies in order to counter it effectively. Such strategies include, for example, increasing people’s awareness of the backfire effect, using simple explanations, and changing the way you present information.

One study, for example, examined people’s opinions about federal welfare programs. The researchers found that the majority of people were highly-misinformed about the nature and scope of these programs, and that interestingly enough, the people who were the least-informed about them generally expressed the highest degree of confidence in their knowledge.

Furthermore, the researchers found that presenting people with facts about these welfare programs did little to change people’s opinion about them. However, in a follow-up study, the researchers discovered that tweaking the way they presented the facts made people respond more positively to the new evidence.

In this follow-up, people were first asked to estimate the percentage of the national budget that is allocated towards welfare. Then, they were also asked what percent of the budget they believed should be spent on welfare.

Posing these questions back-to-back led participants to contrast their perception of reality with their preferred level of spending, before they were told what portion of the budget is spent on welfare in reality. This meant that most of them had to process the fact that not only is the federal-spending lower than they thought, but it is also lower than the portion of the budget that they believed should be allocated to welfare.

Even though this comparison is something that people should have done naturally if they were processing the information rationally, the only thing that got them to do this in reality was to ask them explicitly state how much they believed should be spent on welfare. Accordingly, people only responded positively to the corrective information when they were asked this preliminary question, which led them to internalize and accept the fact that they were wrong.

For you, this means that when you’re talking to people in an effort to change their stance on something, if you want to avoid a backfire effect then you need to remember that it’s not just about the information that you give them, but also about how you present it.

As such, you need to display the new information in a non-confrontational manner, that allows people to internalize the new facts, and reach the conclusion that you want them to reach themselves. That is, if you actually want to get your point across, then attacking the other person for having the ‘wrong’ opinion, no matter how misguided it might be, is unlikely to work, since it will probably just put them in a defensive mindset, where they’re not willing to accept new evidence.


Reducing your own backfire effect

In addition to reducing the backfire effect that other people experience, you can also use your understanding of this bias in order to reduce the degree to which you yourself experience it. This necessitates being critical of how you process new information, and will allow you to think in a more rational way and to make better decisions.

The basic way to reduce your own backfire effect is to be aware of its influence, and to modify the way in which you react when you encounter information that contradicts your existing beliefs. Specifically, when you encounter such information, you should avoid ignoring it outright or trying to immediately explain to yourself why it is wrong. Instead, you should first try and look at it with fresh eyes, and assess it based on its own merit, without comparing it to your preexisting theories.

Beyond this, you can use the techniques that we saw above, as well as other debiasing techniques that can help you avoid this bias. These techniques revolve primarily around getting you to process new information in a conscious rational manner, instead of reacting to it intuitively, which helps ensure that you will give new information the chance that it deserves.


The backfire effect isn’t always there

While the backfire effect plays a significant role in how people process new information, that doesn’t mean that it affects everyone all the time, and studies show that there are cases where the backfire effect doesn’t influence people’s thought process.

This doesn’t necessarily contradict other findings on the topic, since even studies that show support for the existence of the backfire effect demonstrate that its influence is highly variable, and depends on various factors.

Furthermore, since it’s difficult to predict when the backfire effect will play a role in people’s thought process, it’s often advisable to assume that people will experience it, and to act accordingly. This affects both your choice on when to debunk people’s misconceptions, as well as your choice regarding how to debunk those misconceptions.

Overall, while the backfire effect can influence people’s thought process in various situations, there are also cases where regular debunking attempts end up working properly. Whether or not people will experience a backfire effect depends on a variety of factors, and since this can be difficult to predict, you should generally be wary, and prepared to account for its influence.


Summary and conclusions

  • The backfire effect is a phenomenon where people who encounter evidence that contradicts their beliefs, strengthen their support for those beliefs, despite the new evidence to the contrary.
  • The backfire effect has been observed in various scenarios, such as in the case of people supporting a political candidate more strongly after negative information about that candidate is released. It often plays a role in people’s belief in pseudoscientific theories, as in the case of people’s belief that vaccines are highly dangerous.
  • The backfire effect occurs primarily because when people argue strongly against unwelcome information, they end up with more arguments that support their original stance.
  • If you’re trying to explain to someone the issues with their stance, you can mitigate the backfire effect by presenting new information in a way that allows the other person to reach the conclusion that you want them to reach by themself, based on the evidence that they encounter.
  • There is variability in terms of when people are influenced by this effect, and there are situations where people don’t experience a backfire effect when they are shown information which contradicts their beliefs. However, since this variability is difficult to predict, it’s better to assume that the backfire effect will play a role in people’s thought process, and to act accordingly.