Chapter 1

The Three Surprises About Change

1.

One Saturday in 2000, some unsuspecting moviegoers showed up at a suburban theater in Chicago to catch a 1:05 P.M matinee of Mel Gibson's action flick Payback. They were handed a soft drink and a free bucket of popcorn and asked to stick around after the movie to answer a few questions about the concession stand. These movie fans had unwittingly entered a study of irrational eating behavior.1

There was something unusual about the popcorn they received. It was wretched. In fact, it had been carefully engineered to be wretched. It'd been popped five days earlier and was so stale that it squeaked when you ate it. One moviegoer later compared it to Styrofoam packing peanuts, and two others, forgetting that they'd received the popcorn for free, demanded their money back.

Some of them got their free popcorn in a medium-sized bucket, and others got a large bucket--the sort of huge tub that looks like it might once have been an above-ground swimming pool. Everybody got their own individual bucket so there'd be no need to share. The researchers responsible for the study were interested in a simple question: Would the people with bigger buckets eat more?

Both buckets were designed to be so big thatno one could finish their portion. So the actual research question was a bit more specific: Would somebody with a larger inexhaustible supply of popcorn eat more than someone with a smaller inexhaustible supply?

The sneaky researchers weighed the buckets before and after the movie, so they were able to measure precisely how much popcorn each person ate. The results were stunning: People with the large buckets ate 53 percent more popcorn than people with the medium size. That's the equivalent of 173 more calories and approximately 21 extra hand-dips into the bucket.2

The author of the study, Brian Wansink, runs the Food and Brand Lab at Cornell University and he described the results in his book Mindless Eating: "We've run other popcorn studies, and the results were always the same, however we tweaked the details. It didn't matter if our moviegoers were in Pennsylvania, Illinois, or Iowa, and it didn't matter what kind of movie was showing; all of our popcorn studies led to the same conclusion. People eat more when you give them a bigger container. Period."

No other theory explains the behavior. These people weren't eating for pleasure. (The popcorn was so stale it squeaked!) They weren't driven by a desire to "finish their portion." (Both buckets were too big to finish.) It didn't matter whether they were hungry or full. The equation is unyielding: Bigger container = more eating.

Best of all, people refused to believe the results. After the movie, the researchers told the moviegoers about the two bucket sizes and the findings of their past research. The researchers asked, do you think you ate more because of the larger size? The vast majority scoffed at the idea, saying things like, "Things like that don't trick me," or "I'm pretty good at knowing when I'm full."

Whoops.

2.

Imagine that someone showed you the data from this study but didn't mention the bucket sizes. On your data summary, you'd see how much popcorn each person ate. You could quickly scan the results and see the differences--some people ate a little bit of popcorn, some ate a lot, and some seem determined to test the physical limits of the human stomach. Armed with a data set like that, you would have found it easy to jump to conclusions. Some people in the world are Reasonable Snackers and others are Big Gluttons.

A public health expert, studying that data alongside you, would likely get very worried about the Gluttons. We need to motivate these people to adopt healthier snacking behaviors! Let's find ways to show them the health hazards of eating so much! And maybe we should approach state legislators about a Big Bucket Ban! 닫기

출고 예정	도착예정일	비고
5~6일 이내	6~7일 이내	연휴 및 토.일. 공휴일은 제외
7일 이내	7~8일 이내
14일 이내	14~15일 이내
3~4주 이내	3~4주 이내
4~6주 이내	4~6주 이내

ISBN	9780385528757(0385528752)
쪽수	320쪽
언어	English
크기	150(W) X 211(H) X 30(T) (mm)
판
제본형태	Hardcover
총권수	1권
리딩지수 Level	General Adult

Three Surprises About Change	p. 1
Direct the Rider
Find the Bright Spots	p. 27
Script the Critical Moves	p. 49
Point to the Destination	p. 73
Motivate the Elephant
Find the Feeling	p. 101
Shrink the Change	p. 124
Grow Your People	p. 149
Shape the Path
Tweak the Environment	p. 179
Build Habits	p. 203
Rally the Herd	p. 225
Keep the Switch Going	p. 250
How to Make a Switch	p. 259
Overcoming Obstacles	p. 261
Next Steps	p. 265
Recommendations for Additional Reading	p. 267
Notes	p. 269
Acknowledgments	p. 293
Index	p. 295
Table of Contents provided by Ingram. All Rights Reserved.

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[Book] Switch How to Change Things When Change Is Hard

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