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The effects of recent exposure on general-knowledge estimation.
1Department of Psychology, State University of New York at Binghamton 13902-6000, USA. wester@binghamton.edu
Memory (Hove, England)
|January 25, 2000
Summary
People often mistakenly believe they already knew information after recently learning it. This "illusory knowledge effect" is linked to enhanced familiarity, not memory underestimation.
Area of Science:
- Cognitive Psychology
- Memory Studies
- Social Cognition
Background:
- Individuals frequently assert prior knowledge of facts encountered recently.
- This phenomenon, termed the "illusory knowledge effect," warrants investigation into its underlying cognitive mechanisms.
Purpose of the Study:
- To investigate the cognitive basis of the illusory knowledge effect.
- To determine if enhanced familiarity, rather than memory misattribution, drives the tendency to claim prior knowledge.
Main Methods:
- Experiment 1: Assessed illusory knowledge without requiring factual recall.
- Experiment 2: Examined the effect with both true and false factual information.
Main Results:
- The illusory knowledge effect persisted even without a knowledge recall component.
- The effect was observed for both true and false facts, indicating familiarity as a key factor.
- Findings challenge explanations based solely on underestimating new knowledge or intentionally inflating prior knowledge.
Conclusions:
- Enhanced familiarity with recently presented information is the primary driver of the illusory knowledge effect.
- The study provides evidence against explanations solely relying on knowledge underestimation or intentional inflation.
- Understanding this effect is crucial for accurate self-assessment of knowledge and learning processes.