Even if you’ve never heard the term selection bias, you likely already have a grasp of what it means. It’s a staple of our current culture and social media use. People love to post pictures from their great vacation or fancy restaurant meal, but rarely do you see the bill. Cute kids and sleeping dogs are also more fun to share than their crying and barking alter egos. This can easily lead to the idea that other people are living some perfect life, devoid of the challenges that we all face. Therein lies the bias. You only see the selected information instead of the full data set.
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