How to test the inside of your head
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The document discusses various cognitive biases and logical fallacies that can influence human decision making and perception of data. It provides examples of confirmation bias, normalcy bias, and scenarios involving outcomes and context. Images are included of Mars from the Viking 1 and Mars Reconnaisance Orbiter missions with references to observations of surface features.
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How to test the inside of your head
- 2. A story because we all love sleeping
- 3. Build beliefs Draw conclusions Generate assumptions Filter data Observe data
- 5. Cydonia, Viking 1, 1976
- 6. Cydonia, Viking 1, 1976
- 11. Scenarios Given a context When an event happens Then an outcome should occur
- 12. Examples Given Fred has bought a microwave And the microwave cost £100 When we refund the microwave Then Fred should be refunded £100.
- 13. Context Questioning Is there a context in which this event will create a different outcome?
- 14. Cydonia, Mars Reconnaisance Orbiter, 2006
- 15. Martian channels by Percival Lowell
- 16. Confirmation Bias Think we’re right Feel really good! Look for validation
- 17. Confirmation Bias Think we’re right Boo! Find out we’re not
- 18. System Illusion of justification Normalcy bias transparency Decoy effect Insensitivity Confirmation Loss Aversion False to sample Bandwagon Fundamental Bias consensus Pessimism size effect Attribution Negativity effect bias 159 Cognitive Omission bias Error Distinction Optimism bias Hyperbolic bias bias Biases on Google effect Overconfidence discounting Illusion of Cryptomnesia Restraint bias Control Wikipedia Naïve cynicism effect Pseudocertainty Actor- Stereotyping Anchoring effect Observer Choice- Apophenia Bias Worse-than- Pareidolia supportive Trait average bias ascryption Forer effect Congruence effect bias Moral luck
- 19. Build beliefs Draw conclusions Generate assumptions Filter data Observe data
- 21. Scenarios Given a context When an event happens Then an outcome should occur
- 22. Traditional Rework Developers Testers Deliberate Discovery skills
- 23. Behavior Driven Development Less Rework Testers Developers Testers Deliberate Discovery skills
- 24. Context Questioning Is there a context in which this event will create a different outcome?
- 25. Outcome Questioning Is this the only outcome that matters?
- 26. Options have value. Options expire. Never commit early unless you know why.
- 27. The Huddle Developer
- 29. Assumption Questioning Is there a different context which might have produced this outcome?
- 36. A story because we all love sleeping