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The Role Of Human
Bias In OurAnalys
is And Decision-
Making Accuracy
圖資三 張雅婷
圖資三 鄭文音
Cognitive BiasBase rate fallacy, Choice-supportive bias Confirmation bias, Congruence bias Contrast effect, Denomination effect Distinction bias , Endowment effectExperimenter's or Expectation biasIllusion of control , Impact biasInformation bias, Irrational escalation
Cognitive BiasBase rate fallacy, Choice-supportive bias Confirmation bias, Congruence bias Contrast effect, Denomination effect Distinction bias , Endowment effectExperimenter's or Expectation biasIllusion of control , Impact biasInformation bias, Irrational escalation
Groupthink
Blindspots
Groupthink
Cause of Groupthink
A desire to avoid being seen as foolish
A desire to avoid embarrassing or angering
A culture that mutes risk-taking
other members of the group
Challenger
All member felt obligated to live up to the group “norms”
Any suggestion that would lead to a delay was rejected.
Employees conducted private conversation are underhigh stress and concerned about losing future
Other tragic resultAttack on Pearl Harbor
Vietnam War
Korean War
Invasion of Iraq
“I’m not interested in groupthink!”
Blindspots
Types of Blindspots
Unchallenged assumptions
Corporate myths
Corporate taboos
Top 3 Tech Howlers
The iPod will never take off.
There is no reason for any individualto have a computer in his home.
Nuclear-powered vacuum cleaners will probably be a reality within ten years. ?
Top 3 Tech Howlers
The iPod will never take off.
There is no reason for any individualto have a computer in his home.
Nuclear-powered vacuum cleaners will probably be a reality within ten years.
Ken Olsen
The CEO and founder of DEC
Have strong opinions about PC
Corporate myth
Call in external resources or outside experts to review your work
1.
Have someone you trust review your work
2.
3. Keep an open mind Question everything
Think objectively byplacing yourself in the position of an outsider
4.
5. Get in the habit ofquestioning all assumptions
Play devil’s advocate if necessary.
6.
Have two teams work on the same request7.
Do not hold a personal attachment or assign over-important to your own recommendation
8.
9. Rotate roles and responsibilities within your competitive intelligence team
10.As a manager try and hold your opinions to yourself
T.HANKS