Explain yourself
Research published last year on this illusion of understanding shows how the effect might be used to convince others they are wrong. The research team, led by Philip Fernbach, of the University of Colorado, reasoned that the phenomenon might hold as much for political understanding as for things like how toilets work. Perhaps, they figured, people who have strong political opinions would be more open to other viewpoints, if asked to explain exactly how they thought the policy they were advocating would bring about the effects they claimed it would.
Recruiting a sample of Americans via the internet, they polled participants on a set of contentious US policy issues, such as imposing sanctions on Iran, healthcare and approaches to carbon emissions. One group was asked to give their opinion and then provide reasons for why they held that view. This group got the
dermes opportunity to put their side of the issue, in the same way anyone in an argument or debate has a chance to argue their case.
Those in the second group did something subtly different. Rather that provide reasons, they were asked to explain how the policy they were advocating would work. They were asked to trace, step by step, from start to finish, the causal path from the policy to the effects it was supposed to have.
The results were clear. People who provided reasons remained as convinced of their positions as they had been before the experiment. Those who were asked to provide explanations softened their views, and reported a correspondingly larger drop in how they rated their understanding of the issues. People who had previously been strongly for or against carbon emissions trading, for example, tended to became more moderate – ranking themselves as less certain in their support or opposition to the policy
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So this is something worth bearing in mind next time you're trying to convince a friend that we should build more nuclear power stations, that the collapse of capitalism is inevitable, or that dinosaurs co-existed with humans 10,000 years ago. Just remember, however, there's a chance you might need to be able to explain precisely why you think you are correct. Otherwise you might end up being the one who changes their mind.
