Home » Transcript: Three Myths of Behavior Change – What You Think You Know That You Don’t by Jeni Cross at TEDxCSU

Transcript: Three Myths of Behavior Change – What You Think You Know That You Don’t by Jeni Cross at TEDxCSU

Jeni Cross

Full transcript of sociology professor Jeni Cross’ TEDx Talk: Three Myths of Behavior Change – What You Think You Know That You Don’t at TEDxCSU conference.

Listen to the MP3 Audio here:  Three Myths of Behavior Change – What You Think You Know That You Don’t by Jeni Cross at TEDxCSU


So I want to challenge you all about what you think you know. Many of you are here, because you’re really interested in making change. And you’re thinking about making change in lots of places and lots of ways. But what you don’t know is that your greatest adversary is not that change is hard to make, your greatest adversary is common sense.

I know that’s kind of a shocker. You think that you’re a human being and you know the way the world works but I’m here to burst that bubble.

So let’s look at a couple of efforts to make change. One of the things people have been working on for decades is trying to reduce littering, trying to get us to put our trash and our waste in appropriate places. And so here we have two campaigns — one, that says, ‘This is the amount of rubbish that’s been left around this bus stop since Monday. And that’s a really common strategy for trying to encourage people to stop wasting. If we show people how big the problem is, they’ll stop doing it.’

The other strategy is Poster B and it says, ‘See what this Olympic runner is doing. She cares about our town Preston and she’s throwing away her waste.’

So I want each of you to look at these two ads: A and B and think to yourself: which one has the biggest chance of making a change and reducing littering? And just keep that in your mind, we’ll get back to it at the end and we’ll see how good you are.

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So I promised you that I would talk to you about common sense and why it’s your greatest adversary. So there really are three kind of big ways that common sense leads us astray. And the first is that we think if we are going to change people’s behavior, they just need education. If we just give them some information, then they’ll change their behavior. What’s missing in this equation is that people don’t know. And if we just fill in the gaps, then we can get them to do what we want.

So let’s think about one thing that people are talking about a lot right now which is energy conservation. April opened today by telling you that buildings are responsible for 40% of our energy consumption, 40% of our greenhouse gas emissions. So if we want to make an impact on climate change, we need to think about buildings.

So some social scientists were thinking: how do we get homeowners to reduce their energy consumption and they sent auditors out to look at people’s homes. And one of the things they were looking for and reporting back on and giving people information about is these little gaps in around your doors and windows. If you live in an old house, like the house I grew up in, you might have these little cracks and they’re letting in cold air and that’s making you have to turn your furnace up.

So if we just tell people how many cracks there are, how many windows need help, people will weather strip, right? So if you give people information, 20%! 20% of people are weatherstripped. But really we’re going to spend money and send people to homes and investigate and we only get one out of five people to change their behavior, we can do better than that. We have to know that how you present information makes a difference. And one of the big things that makes the difference is making information tangible. If you take all of those little cracks around all of those doors and windows and you say how big is that, the gap in your house is as big as a basketball, people then magically now understand how important it is to fill them. When they just think they have 16 windows in cracks they don’t see it is important but when you make it more tangible and say you have a hole in your house the size of a basketball, people say, oh maybe weatherstripping those doors would really make a difference.

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So making information tangible makes the difference. The folks in this study did more than just make information tangible, they also personalized information in those homeowners and they interacted with them. Putting up posters that people might or might not see is never as effective as talking to other people. Social interaction is one of the most important tools that we can use for making change.

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