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Study: Using big words needlessly makes you seem stupider

Everyone knows how college students will try to make themselves sound smarter by reaching for the thesaurus and using big, ponderous words they barely understand. But now a new study shows that readers can see through this. Daniel Oppenheimer, a psychologist at Princeton, took a handful of writing samples and used a thesaurus to replace the simple words with needlessly flowery ones. As the Bad Language blog notes:

He created a “highly complex” version of each original text by replacing each noun, verb and adjective in it with the longest synomym. This is the kind of writing by thesaurus that many business people and techies employ when they want to sound knowledgeable and important or because they think writing like they speak will make them sound lightweight.

Then Oppenheimer gave all the writing samples — the original, simple ones and the modified, flowery ones — to 71 students to evaluate. The result? As the grandiosity and complexity of the language increased, the judges’ estimation of the intelligence of the authors decreased. Oppenheimer wrote up his results in a paper with the gorgeously ironic title “Consequences of Erudite Vernacular Utilized Irrespective of Necessity: Problems with Using Long Words Needlessly.”

His findings make perfect sense when you think about the nature of language. Every sentence and paragraph of writing is an organic whole; a writer’s style is, too. Taking a sentence and swapping in synonyms plucked from a thesaurus is bound to warp the meaning and clarity of a sentence, because synonyms are not mathematical equals: They all have slightly different shadings. Describe someone as “angry” and it means one thing; describe them as “choleric” or “furious” or “splenetic” — all synonyms offered up by Thesaurus.com — and you’re saying something slightly different. When an essay is filled with these sort of swapped-in synonyms, it winds up having Frankensteinian seams: You can feel its cognitive artificiality, its constipated straining to convey a higher meaning. No wonder the judges thought these essays seemed dumber.


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I'm Clive Thompson, a writer on science, technology, and culture. This blog collects bits of offbeat research I'm running into, and musings thereon.

Currently, I'm a contributing writer for the New York Times Magazine and a columnist for Wired magazine. I also write for Fast Company and Wired magazine's web site, among other places. Email or AOL IM me (pomeranian99) to say hi or send in something strange!

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September 26, 2008 » 01:57 PM

From an interview with ethnobotanist and anthropologist Wade Davis:

One of the cultures you celebrate in Light at the Edge of the World is the Inuit. What do you most admire about them?

Davis: The Inuit didn’t fear the cold; they took advantage of it. During the 1950s the Canadian government forced the Inuit into settlements. A family from Arctic Bay told me this fantastic story of their grandfather who refused to go. The family, fearful for his life, took away all of his tools and all of his implements, thinking that would force him into the settlement. But instead, he just slipped out of an igloo on a cold Arctic night, pulled down his caribou and sealskin trousers, and defecated into his hand. As the feces began to freeze, he shaped it into the form of an implement. And when the blade started to take shape, he put a spray of saliva along the leading edge to sharpen it. That’s when what they call the “shit knife” took form. He used it to butcher a dog. Skinned the dog with it. Improvised a sled with the dog’s rib cage, and then, using the skin, he harnessed up an adjacent living dog. He put the shit knife in his belt and disappeared into the night.

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