The Social Perception Test - Conjunction Fallacy – Part 1

The Social Perception Test - Conjunction Fallacy – Part 1


Can you pass the Social Perception Test? It’s super short, and almost 90% of stanford got it wrong. Developed by Nobel Prize winning economist Daniel Kahneman (and Amos Tversky), it shows us something super cool about how our brains work. I love training my brain, so I’ll be doing a regular segment on cognitive biases and how you can try to avoid them.

Here’s the test.

Linda is 31 years old, single, outspoken and very bright. She majored in philosophy. As a student, she was deeply concerned with issues of discrimination and social justice, and also participated in anti-nuclear demonstrations.

I’m going to give you 8 possible descriptions of Linda that I want you to rank in order of most to least likely to apply to her.

Linda is a teacher in elementary school. Linda works in a bookstore and takes Yoga classes. Linda is active in the feminist movement. (F) Linda is a psychiatric social worker. Linda is a member of the League of Women Voters. Linda is a bank teller. (T) Linda is an insurance salesperson. Linda is a bank teller and is active in the feminist move- ment. (T&F)

Don’t cheat! Think, then write your answer in the comments, in a format like this: “5>3>4>2>1>8>7>6”

Next video i’ll go over the ideal answer, and what your answer says about your brain.

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The Conjunction and Disjunction Fallacies: Explanations of the Linda Problem by the Equate-to-Differentiate Model