![](http://i.imgur.com/Y7VRYS5.jpg)
### Have you ever heard of the term "confirmation bias" ? If not, you will suddenly notice it everywhere after reading this article! The confirmation bias describes a psychological phenomenon. ***It means that once we have formed an opinion about something, we embrace information that supports this idea, but ignore anything hat doesn't go hand in hand with our opinion.*** And this can be applied to many different situations: If you already **dislike** someone, you are much more likely to **highlight** every tiny mistake they make, and don't acknowledge if they achieve something positive. If you ***want*** something to be true, for example you want to believe that your partner didn't cheat on you, you are more likely to ignore or look over small evidences that might otherwise prove you wrong. If you hear a rumour about someone you like, you are probably not going to believe it, but if it's about someone you *dislike*, you will think "I always knew there was something wrong with this person!" ### Once you start thinking about it, you will notice that confirmation bias influences our opinions in *a lot* of different ways in our everyday life!
![](http://i.imgur.com/iBz30fV.png)
## So what is the scientific reason for this way of thinking ?! The most popular theory states that it's all about the *motivation* that someone has. **If you change the motivation, that person will stop being biased.** Example: ***Wishful thinking***, believing what we want to believe and hearing what we want to hear! If our motivation changed, if what we wanted to believe changed, **we would suddenly view things from a different point.** Another, less popular theory states that it's not all about our point of view, but rather about all the things we're ***missing*** when getting new information. We see things a certain way and on't even think about other possible ways, or that our first thoughts **might not be correct** and that the situation might be completely different. **So in a way, it's a misinterpretation, based on a lack of knowledge or concern about other points of view.**
![img](https://s-media-cache-ak0.pinimg.com/564x/8a/5c/86/8a5c86724511e4f8169cb10f6db3ccdf.jpg)
### In the 80's, a very interesting experiment by Charles Lord tested both of these theories. The study tested participants with strong pro- or contra- **death penalty** views. They were presented with information that supported either the continuation or demolition of the death penalty, so depending on what the people already believed in, **this information was agreeing or disagreeing with their internal views.** And the interesting results showed that ***both*** confirmatory and disconfirmatory information strengthened the participant's original views! **So even evidence *against* death penalties made death penalty-supporters support it even *more*.**
![img](https://assets.entrepreneur.com/article/1444418135_confirmation-bias.jpg)
The second study about the motivation-theory had participants answer questions about the ***effectiveness*** of death penalty, and information to support it or disapprove it. ### But the key is that the participants were split into two groups, and received two different instructions. One of them asked them to answer every step of the questionnaire as ***neutral*** as possible, as if they were a judge and had to come to the most fair conclusion. The other instructions only asked the participants to note whether or not they would have acted in the same way, and to ***imagine the information being the complete opposite.*** ### **And now for the results:** Even when the participants were asked to analyze the information completely **objectively**, the results still showed that they answered the questionnaire with a totally **biased** opinion. But in the group that had the "*consider-the-opposite-instructions*" the results showed that the biased opinions were **overshadowed**, the participants who always thought about the opposite information made much more objective choices and weren't influenced by their bias.
https://www.youtube.com/watch?v=tZvDaPBqAyg
### So In conclusion: Once we have formed an opinion about something or someone, it can be quite hard to be convinced of the opposite. **We humans tend to acknowledge only information that supports our opinion, and ignore statements that would disagree with it.** This is linked to ***wishful thinking***, we just really *want* something to be true, so we subconsciously select and filter the information we receive about the topic. ### Confirmation bias appears almost everywhere in our everyday lives, and it can be quite hard to saty unaffected by this and remain an objective point of view!

*Images: [1](http://www.globoforce.com/gfblog/2012/8-cognitive-biases-that-will-make-or-break-your-culture/), [2](https://matadornetwork.com/life/infographic-cognitive-biases-affect-everyday-decisions/), [3](https://de.pinterest.com/pin/250864641722367513/), [4](https://www.entrepreneur.com/article/251536), Sources: [1](http://www.huffingtonpost.com/michelle-tang/i-know-you-are-and-so-am-_b_12375786.html), [2](http://www.wiwo.de/impressum/nutzungshinweise/blocker/?callback=%2Ferfolg%2Ftrends%2Fconfirmation-bias-warum-wir-einmal-gefasste-meinungen-selten-aendern%2F5301880.html), [3](http://www.bbc.com/future/story/20170131-why-wont-some-people-listen-to-reason), [4](https://www.sciencedaily.com/releases/2015/11/151116143602.htm), [5](https://www.psychologytoday.com/blog/science-choice/201504/what-is-confirmation-bias)*