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What makes most restaurant reviews worthless

Stashed in: User Generated Content, Yelp!, Weather!

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Not just the general reason why they are bad, but Caitlin Dewey reports about the weather:

. . . a new paper appropriately titled “Demographics, Weather and Online Reviews.” The study analyzed 1.1 million online reviews of 840,000 restaurants, looking for exogenous — or external — factors in the data. In other words, they wanted to figure out what makes us like or dislike a restaurant, beside the restaurant itself.

The results can be surprising. The diners’ education levels? No effect on actual ratings. Population of the area? Again, not so much.

But reviewers consistently gave worse ratings when it was raining or snowing outside than when it was clear. And reviewers usually liked restaurants better on warm and cool days, rather than very hot or very cold ones.

In researcher Saeideh Bakhshi’s words: “The best reviews are written on sunny days between 70 and 100 degrees … a nice day can lead to a nice review. A rainy day can mean a miserable one.”

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