Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
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People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
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The Japanese commonly put ketchup on their rice.
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According to some estimates, Americans are sitting on $30 billion worth of unredeemed gift cards.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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Approximately 4 to 5% of the U.S. population has one or more clinically significant phobias in a given year. Specific phobias occur in people of all ages. The average age of onset for social phobia is between 15 and 20 years of age, although it can often begin in childhood.
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95% of people feel uncomfortable when the TV volume is an odd number.
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