MCAT® ExamCritical Analysis and Reasoning SkillsMedium

A financial advisor is discussing investment strategies with a client. The client, having recently seen several news reports about a few highly successful tech startups, is convinced that investing heavily in similar startups is a surefire way to get rich quickly, despite the advisor's warnings about the high failure rate of new businesses. Which cognitive bias is the client most likely exhibiting?

  1. AGambler's Fallacy
  2. BAnchoring Bias
  3. CAvailability Heuristic
  4. DRepresentativeness Heuristic
Show answer & explanation

Correct answer: C. Availability Heuristic

The client is exhibiting the availability heuristic, a cognitive bias where people tend to overestimate the likelihood of events that are easily recalled or vivid in memory. The recent news reports of successful startups are highly available in the client's mind, leading them to believe such success is more common than it actually is, ignoring the base rate of failure.

Why the other options are wrong

  • A. The gambler's fallacy is the mistaken belief that past events influence future independent events, such as believing a coin is 'due' for heads after several tails. (Incorrect)
  • B. Anchoring bias occurs when an individual relies too heavily on an initial piece of information (the 'anchor') when making decisions. (Incorrect)
  • D. The representativeness heuristic involves judging the likelihood of an event by how well it matches a prototype or stereotype, rather than by probability. (Incorrect)

Availability Heuristic

A mental shortcut that relies on immediate examples that come to a given person's mind when evaluating a specific topic, concept, method or decision.

  • Leads to overestimation of vivid, easily recalled events.
  • Influenced by media coverage, personal experiences, and recent events.
  • Can lead to biased judgments of probability or frequency.

Memory trick: Heuristics are mental hacks, sometimes helpful, sometimes misleading.

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