Notes on Cognitive Biases and Heuristics
Page 1
- Introductory remark highlights the tendency to oversimplify complex ideas, suggesting a need for deeper understanding.
Page 2
- Discussion Questions:
- Is there such a phenomenon as "the hot hand" in basketball?
- Identify non-sporting examples of the "hot hand" phenomenon.
- Considerations on the depiction of individuals by social cognition researchers.
Page 3
- Types of Simplification Strategies:
- Dispositional Inference Biases
- Confirmatory Biases
- Cognitive Heuristics
Page 4
- Cognitive Heuristic:
- Defined as a mental shortcut that simplifies decision-making.
- Can be adaptive but may lead to mistakes if relied upon too heavily.
Page 5
- Common Cognitive Heuristics:
- Anchoring and Adjustment Heuristic
- Representativeness Heuristic
- Availability Heuristic
- Straightness Heuristic
Page 6
- Introduction of the Mississippi River question, setting up a practical example of cognitive heuristics.
Page 7
- Mississippi River Query:
- Is the Mississippi River longer than 500 miles?
- Reflection on Actual Length.
Page 8
- Continued emphasis on estimation related to the Mississippi River question.
Page 9
- Another Mississippi Query:
- Is the Mississippi River longer than 5,000 miles?
- Actual length consideration.
Page 10
- Introduction of a math-related query for estimative problem-solving.
Page 11
- Math Challenge:
- Estimate the product: 1imes2imes3imes4imes5imes6imes7imes8
Page 12
- Continuation of math challenges aimed at enhancing estimation skills.
Page 13
- Another Math Challenge:
- Estimate the product: 8imes7imes6imes5imes4imes3imes2imes1
Page 15
- Anchoring and Adjustment Heuristic:
- Process explanation: starts with an initial estimate and adjusts accordingly, exemplified in various contexts.
Page 17
- Linda Problem:
- Depicts a scenario to rank perceived likelihood regarding Linda’s profession based on given descriptions.
Page 19
- Representativeness Heuristic:
- A strategy of assessing likelihood based on prototypes rather than statistical thinking.
Page 20
- Conjunction Error:
- Mistaken belief that two events together are more likely than either event individually; an example of representativeness heuristic.
Page 21
- Coin Flip Scenario:
- Illustration contrasting likelihoods with sequences of heads and tails.
Page 22
- Gambler’s Fallacy:
- A belief where individuals think the occurrence of a random event influences future occurrences.
Page 24
- Hot Hand Phenomena:
- Common belief in sports, particularly basketball, that consecutive successes increase likelihood of further success.
Page 25
- Study by Larkey et al., 1989:
- Analysis of famous players like K. Abdul Jabbar and Michael Jordan; findings suggest the hot hand effect isn't statistically present overall.
Page 27
- Causes of Death (Statistical Overview):
- Analysis of leading causes of death, detailing top and bottom categories.
Page 28
- Statistical Breakdown of Causes of Death in 2002:
- Percentages and ranks given for various causes, highlighting significant health issues like heart disease and cancer.
Page 29
- Language Example Comparison:
- Evaluating word frequency issues; how many start with “r” versus having “r” as the third letter.
Page 30
- Availability Heuristic:
- Concept where people estimate probabilities based on how readily examples come to mind.
Page 31
- Example of the availability heuristic, referencing media coverage of rare events.
Page 33
- False Consensus Effect:
- Explanation of the tendency to overestimate others’ agreement with personal beliefs.
Page 35
- Geography Questions:
- Tests knowledge on U.S. city geography.
Page 37
- Straightness Heuristic:
- Cognitive tendency to misrepresent complexities in order to create a simpler, cleaner perspective.
Page 40
- Bottom Line on Heuristics:
- Adaptive nature of heuristics in cognitive processes, speed versus accuracy trade-off, and importance of recognizing errors to improve judgments.