A starting number can pull an estimate toward it
Classic anchoring research used a comparison followed by a numerical judgment, making the starting point part of the task. A difference between groups does not show that every participant moved by the same amount or that every kind of estimate responds identically.
Questions you could explore
- What would make a starting number informative rather than merely influential?
- How could a study test whether an irrelevant starting number shifts later estimates?
Start reading
- Science, American Association for the Advancement of ScienceJudgment under Uncertainty: Heuristics and Biases
The original paper’s anchoring section describes the task and reported group summaries. The brief account does not supply all individual responses.
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