the saboteur in your retrospectives: how your brain works against you @ indy.code 2017
TRANSCRIPT
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THE SABOTEUR IN YOUR
RETROSPECTIVESHow Your Brain Works Against You
Arthur Doler @arthurdoler [email protected] Slides:
http://bit.ly/2oyYMwmHandout: http://bit.ly/2o9kDxM
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WHY SHOULD WE HAVE RETROSPECTIVES?
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To assess the outcomes of the team’s behavior
To change that behavior to get better outcomes
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WHAT HAPPENED?!
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THE BRAIN HAPPENED!Cognitive Biases
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SYSTEM 1
SYSTEM 2
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SYSTEM 1
IntuitiveUnconsciousAssociative
SYSTEM 2
CognitiveConsciousLinear
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PERSONIFYING THE SYSTEMS HELPS US REASON ABOUT THEIR ACTIONS BETTER (THAT’S AGENT BIAS)
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SYSTEM 2(ME)
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SYSTEM 1(NOODLE
S)
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WHY DOES NOODLES EXIST?
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SYSTEM 1 Uses less glucose
SYSTEM 2 Uses lots of glucose
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SYSTEM 2 IS COGNITIVELY LAZY
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“I WONDER WHAT THE BEST WAY TO DESIGN THIS CONTROLLER IS.”
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IDEA!
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I RARELY EVER QUESTION WHAT NOODLES BRINGS ME
BUT NOODLES’ WHOLE JOB IS TO BE LAZY
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YOU NEVER KNOW WHAT NOODLES IS THINKING!!!!
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THE LACK OF COMMUNICATION LEADS TO HICCUPS
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A bat and a ball cost $1.10.
The bat costs one dollar more than
the ball.
How much does the ball cost?
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WHAT CAN I DO ABOUT THIS?
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YOU CAN NEVER REALLY CONTROL NOODLES!
THE ONLY REAL TOOL IS AWARENESS
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•Narrative Bias•Attribution Errors
oFundamental Attribution Error
oGroup Attribution Error
oUltimate Attribution Error
•Choice-Supportive
Bias•Framing and Anchoring Effects•Hindsight Bias•Illusion of Control•Change Bias•Egocentric Bias•Bias Blind Spot
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NOW LET’S ACTUALLY GET TO SOME RETROSPECTIVES!
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NARRATIVE BIAS
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NARRATIVE BIASFALLACY
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NARRATIVE BIASFALLACY
HEURISTIC
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HUMANS DO NOT PROCESS NARRATIVE DATA IN THE SAME WAY WE PROCESS FACTUAL DATA
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Fred’s parents arrived late.
The caterers were expected soon.
Fred was angry.
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HUMANS HAVE A STRONG TENDENCY TO APPLY THE POST HOC ERGO PROPTER HOC LOGICAL FALLACY
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After spending a day exploring beautiful sights in the crowded streets of New York, Jane discovered that her wallet was missing.
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WE SEE CAUSALITY AND STORY EVERYWHERE
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HUMANS SEE CONFLICT AS NARRATIVES
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WHAT IS NOODLES DOING?
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NOODLES’ JOB IS TO MAINTAIN A MODEL OF YOUR WORLD
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CAUSALITY HELPS NOODLES FIGURE THINGS OUT
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WHAT CAN YOU DO?
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You are a story that you are telling yourself.
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•Recognize that causality is complex
•When you ask “Why did X happen?”, avoid stopping at answers that center on a person
•Realize that the more distant an effect is from a cause, the less likely it is that Noodles will identify that cause
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ATTRIBUTION ERRORS
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FUNDAMENTAL ATTRIBUTION ERROR
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“THE INTUITIVE PSYCHOLOGIST AND HIS SHORTCOMINGS: DISTORTIONS IN THE ATTRIBUTION
PROCESS”
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JONES AND HARRIS, 1967
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Test Procedure:1) Subjects read both pro- and anti-Castro articles
2) Rated the authors on their sentiments about Castro
Control Group:
Test Group:
Not told anythingTold the author chose their side based on a coin flip
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Control Group: Attributed the opinion of the piece to the author
Test Group: Did the same thing!
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MY ACTIONS ARE DUE TO MY SURROUNDING CIRCUMSTANCES
YOUR ACTIONS ARE DUE TO YOUR INHERENT ATTRIBUTES
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WHAT IS NOODLES DOING?
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NOODLES THINKS HE’S GOOD AT FIGURING OUT WHY PEOPLE ACT THE WAY THEY DO…
HE’S WRONG
WE ONLY SEE THEM AND THEIR ACTIONS, NOT THEIR CIRCUMSTANCES
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GROUP ATTRIBUTION ERROR
TYPE 1 AND TYPE 2
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TYPE 1
ANY MEMBER OF A GROUP I AM NOT PART OF IS REPRESENTATIVE OF THAT GROUP
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TYPE 2
ALL MEMBERS OF A GROUP AGREE WITH DECISIONS THAT GROUP MAKES
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WHAT IS NOODLES DOING?
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NOODLES DEALS IN ARCHETYPES
HE WORKS WITH SYMBOLS AND CATEGORIES
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ULTIMATE ATTRIBUTION ERROR
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MY INGROUP’S ACTIONS ARE DUE TO OUR SURROUNDING CIRCUMSTANCES
YOUR INGROUP’S ACTIONS ARE DUE TO YOUR INHERENT ATTRIBUTES
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YOUR INGROUP’S NEGATIVE ACTIONS ARE DUE TO YOUR INHERENT ATTRIBUTES
YOUR INGROUP’S POSITIVE ACTIONS CAN BE EXPLAINED AWAY
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WHAT CAN YOU DO?
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Most types of attribution error deal with outgroups
We deal with outgroups daily:•Customers•QA•UX•Managers•Etc…
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Everybody has a story they tell themselves about themselves…
… and they are (almost) never the villain
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•Try to imagine other people’s story. •What do they value?•What do they see as their extenuating circumstances?
•Actually go talk to people in your outgroups!•Find common goals and recast them as your ally
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FRAMING AND ANCHORING EFFECTS
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FRAMING
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HOW AN IDEA IS INTRODUCED AFFECTS HOW YOU THINK ABOUT IT
(AND THE IDEAS AFTER THAT)
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KAHNEMAN AND TVERSKY, 1981
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IMAGINE A DEADLY VIRUS AFFECTING 600 PEOPLE
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Treatment A:•200 people will live•400 people will die
Treatment B:•33% chance everyone will live•66% chance everyone will die
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Treatment ASaves 200 lives
Treatment BA 33% chance of saving all 600 people, 66% possibility of saving no one
Positive Framing
Treatment A400 people will die
Treatment BA 33% chance that no people will die, 66% possibility that all 600 will die
Negative Framing
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72% of people chose Treatment A when presented with positive framing
78% of people chose Treatment B when presentedwith negative framing
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WHAT IS NOODLES DOING?
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NOODLES HATES LOSING!
ALSO, NOODLES IS ASSOCIATIVE
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ANCHORING
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“What is your best guess of the percentage of African nations in the UN?”
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Average estimate of people who spun 10: 24%
Average estimate of people who spun 65: 45%
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WHAT IS NOODLES DOING?
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ANCHORING AFFECTS BOTH YOU AND NOODLES
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WHAT CAN YOU DO?
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Avoid anchoring by:
•Recording opinions before discussion
•Voting on topics to discuss instead of allowing the first topic to come up to dominate•Use secret ballots if necessary
(The Lean Coffee techniques are a really huge help here)
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Avoid framing by:
•Using neutral frames
•Using frames that are large enough to encompass the whole picture
If all else fails, use multiple frames at once
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ILLUSION OF CONTROL
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JENKINS AND WARD, 1965
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ESTIMATES OF CONTROL BORE NO RELATION TO ACTUAL CONTROL
… BUT WERE CORRELATED TO HOW OFTEN “SCORE” LIT UP
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CONTROL HEURISTIC
You need:
1) An intention to create the outcome
2) A relationship between an action and the outcome
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WHAT IS NOODLES DOING?
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NOODLES WANTS TO MAKE YOU MORE EFFECTIVE
PLUS, NOODLES HATES NOT FEELING IN CONTROL
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WHAT CAN YOU DO?
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Remember that you can only control your own actions…
… but maybe not even the primary effects of those actions!
… and you can forget secondary effects
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HINDSIGHT BIAS
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FISCHHOFF AND BEYTH, 1975
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1) The USA will establish a permanent diplomatic mission in Peking, but not grant diplomatic recognition.
2) President Nixon will meet Mao at least once.
3) President Nixon will announce that his trip was successful.
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PEOPLE RETROACTIVELY INFLATED THEIR ORIGINAL ESTIMATE OF THE EVENTS THAT ACTUALLY HAPPENED
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WHAT IS NOODLES DOING?
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PLUS, HUMANS ARE BAD AT PROBABILITY
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WHAT CAN YOU DO?
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Record everything!
Keep public records of meetings and action items. The more note-taking and note takers the better.
Keep telling yourself: “If I’d known it then, I’d have acted on it then.”
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EGOCENTRIC BIAS
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ROSS, GREENE AND HOUSE, 1977
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HOW MANY OF YOUR PEERS WOULD DO THIS?
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Those who agreed to do it thought 58.3%
would agree
Those who did not agree to do it thought 70.3%
would not agree
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WE TEND TO THINK SOLELY FROM OUR OWN PERSPECTIVE
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FALSE CONSENSUS EFFECT
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WE TEND TO REMEMBER SOLELY FROM OUR OWN PERSPECTIVE
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THINK ABOUT GROUP PROJECTS
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WHAT IS NOODLES DOING?
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NOODLES INFLATES YOUR ROLE IN EVENTS TO MAKE THEM EASIER TO RECALL
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WHAT CAN YOU DO?
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GIVE PEOPLE A PURPOSE
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The stronger your team is – the more they identify with a common goal – the less egocentric bias will
matter in the team.
The stronger your company is…
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INFORMATION BIAS
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BARON, BEATTIE AND HERSHEY, 1988
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A PATIENT PRESENTS WITH SYMPTOMS AND HISTORY WHICH BOTH SUGGEST GLOBOMA, WITH 80%
LIKELIHOOD
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You can do an ET scan, which will be:
•Positive if the patient has flapemia
•Negative if the patient has popitis
•Randomly positive or negative if the patient has globoma
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SHOULD YOU DO THE ET SCAN OR NOT?
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WHAT IS NOODLES DOING?
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MORE INFORMATION IS MORE BETTER!
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IT’S ALSO A FORM OF PROCRASTINATION
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WHAT CAN YOU DO?
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LEARN A BUNCH OF INFORMATION THEORY!
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... OR JUST TRY THINKING OF IT LIKE A GAME
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BIAS BLIND SPOT
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BIAS BIAS
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ILLUSION OF SUPERIORITY
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LAKE WOBEGON“Where all the women are strong, all the men are good looking, and all the children are above average."
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University of Nebraska faculty survey, 1977
•68% rated themselves in the top 25%
•More than 90% rated themselves above average
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YOU THINK YOU ARE LESS BIASED THAN YOU ARE
… AND I’VE JUST SPENT AN HOUR GIVING YOU JUSTIFICATION FOR THAT
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WHAT CAN YOU DO?
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Teach your team about biases – then keep each other honest
“Bias Buddies™”
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LET’S WRAP THIS UP
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REMEMBER!
YOUR PRIMARY TOOL IS AWARENESS
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DO
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• Actually talk to other people and find out what they value, and what their external circumstances are. (Narrative Bias, Attribution Errors)• Be empathetic towards other people. (Narrative Bias, Attribution
Errors)• Remember that the farther an action is from its effects, the less likely
it is that your intuition will connect the dots. (Narrative Bias)• Recast people in your outgroups as your ally. (Attribution Errors,
Egocentric Bias)• Record opinions before discussion. (Anchoring and Framing Effects)• Vote on topics to discuss. (Anchoring and Framing Effects)• Focus on the things your team can actually control. (Illusion of Control)• Record your team’s decisions, and what information led you to make
them. (Hindsight Bias)• Make sure you and your team know your purpose. (Egocentric Bias)• Build trust in your team and become Bias Buddies™. (Bias Bias)
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DON’T
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• Be satisfied with explanations of events that blame a person. (Narrative Bias)• Fall prey to the post hoc ergo propter hoc fallacy. (Narrative Bias)• Use frames that are strictly positive or negative when proposing ideas. (Framing Effect)• Try to use complex processes or even your knowledge of biases to manipulate people. (Illusion of Control)• Feel bad because you “should have known” something. (Hindsight Bias)• Procrastinate by continuing to seek more information when you don’t need it. (Information Bias)• Make decisions under pressure! Cognitive load makes you more likely to accept System 1’s output without checking it first. (All Cognitive Biases)
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THANKS!
Arthur Doler @arthurdoler [email protected] Slides:
http://bit.ly/2oyYMwmHandout: http://bit.ly/2o9kDxM
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RESOURCES•Thinking, Fast and Slow – Daniel Kahneman•You Are Not So Smart – David McRaney•You Are Now Less Dumb – David McRaney•The Hidden Brain – Shankar Vedantam
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•The Wikipedia list of Cognitive Biases•Chase down the primary sources! A lot of the studies are in PDF format for free!
RESOURCES