Archive | psychology

The Myth of the Seven-Eleven Rule

Ever heard about the Seven-Eleven Rule? Neither had I. The seven-eleven rule is based on the belief that people make eleven decisions about a person in the first seven seconds after meeting them. Apparently, the eleven conclusions you make are the following: Education Level Economic Level Perceived Credibility, Believability, Competence and Honesty Trustworthiness Level of…

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Do mobile phones cause you to trust less?

If you use your smart phone frequently, you’re less likely to trust strangers. Kostadin Kushlev of the University of Virginia and Jason Proulx of the University of British Columbia came to this conclusion by analyzing data from the most recent World Values Survey. The World Values Survey is a U.S. nationally-representative poll in which participants…

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Fear of using nuclear energy might be contributing to global warming

Remember the Chernobyl nuclear reactor disaster? In 1986, there was an accident during a test at the Chernobyl nuclear plant in the Ukraine and the resulting explosion released at least 5% of the radioactive reactor core into the atmosphere. The radiation released was 400 times the radiation produced by the bombing of Hiroshima during World…

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You should embrace Hanlon’s Razor

Never attribute to malice that which can be adequately explained by stupidity. This colorful phrase, called Hanlon’s Razor, explains that people aren’t always out to get us; sometimes they just make mistakes. It’s a practical application of Occam’s Razor which states that, everything else being equal, the simplest solution is usually the best one. Hanlon’s…

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How to Avoid the Conjunction Fallacy

I’ve been doing some spring cleaning and stumbled upon one of my favorite University textbooks: Tversky and Kahneman’s “Judgement Under Uncertainty”. This book taught me the basics of probability, a ridiculously useful skill which I’ve relied on far more frequently than I ever would have imagined. A better understanding of probability can help us overcome…

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