Anchoring Bias
The first number, idea, or impression often influences everything that follows.
Evidence: established. We label every concept honestly, and say so when it's a teaching model. How we rate evidence.
Shrink Definition
Anchoring bias is the tendency to rely too heavily on the first piece of information encountered when making judgments or decisions, even when that information is incomplete, arbitrary, or irrelevant. The initial "anchor" influences later thinking more than people typically realize.
Plain language
First impressions often stay in the driver's seat.
Shrink Insight
The mind adjusts from its starting point far less than it believes.
Why it matters
Anchoring bias affects: • salary negotiations • medical decisions • investing • shopping • hiring • relationships • forecasting Being aware of anchors allows more deliberate evaluation.
Common misunderstanding
People often believe they ignored the first piece of information. Research consistently shows it still influences later judgment.
Shrink Perspective
Where you begin often shapes where you end.
Shrink Reflection
What first impression have you continued believing without revisiting?
Shrink Journal
Describe a recent decision. What was the very first piece of information you received? Did it influence everything afterward?
Shrink Step
Before making an important judgment, intentionally seek a second independent source of information.
Shrink Minute
Good thinkers question their starting point.
Shrink Takeaway
The first answer deserves examination, not automatic trust.
Medical boundary
This concept is educational and shouldn't be used to self-diagnose. It doesn't replace care from a licensed clinician. Symptoms, medication, and treatment decisions should be discussed with a qualified professional, and emergency symptoms require emergency care.
Evidence summary
Anchoring bias is one of the best-established findings in behavioral economics and judgment research. Initial information systematically influences later estimates, even when people know the anchor may be arbitrary.
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