Free About 1 hr0 learners Rev. 2026-10-10 0

What a cognitive bias is and why the mind relies on shortcuts, fast and slow thinking, confirmation bias and motivated reasoning, the surprising fallibility of memory and perception, how we misjudge probability and risk, the biases that shape how we see other people, the traps in everyday decisions about time and money, and what has held up under the replication crisis.

The aim is understanding, not cynicism: you should finish able to spot common biases in yourself as well as others, explain the evidence and its limits, appreciate why mental shortcuts are often smart, and use practical habits that make individual and group decisions better. No background needed.

Levels

  1. 1 1. What a Cognitive Bias Is 5-question quiz
  2. 2 2. Confirmation Bias and Motivated Reasoning 5-question quiz
  3. 3 3. Memory and Perception 5-question quiz
  4. 4 4. Judging Probability and Risk 5-question quiz
  5. 5 5. Social Biases 5-question quiz
  6. 6 6. Decisions and Money 5-question quiz
  7. 7 7. What Held Up: Replication and Smart Heuristics 5-question quiz
  8. 8 8. Debiasing in Practice 5-question quiz

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