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Cognitive Biases

Ease of Recall

When making judgments, people rely on both the content recalled and the ease or difficulty with which it is recalled; depending on which source is deemed diagnostic, they may reach opposite conclusions.

THE IDEA

The reviewed studies demonstrate that recall tasks render two distinct sources of information available: the recalled content and the ease or difficulty with which it can be brought to mind. Depending on which source judges draw on, they may arrive at opposite conclusions. Hence, we cannot predict their judgments on the basis of recalled content alone, but must take into account if the content was easy or difficult to bring to mind and whether this subjective experience is deemed diagnostic. When the diagnosticity of recall experiences is called into question, either due to external factors or a perceived lack of knowledge, judges turn to recalled content as the more informative source of information. Before using ease of recall as evidence, ask whether something about the task or your familiarity with the topic made recall unusually easy or difficult.

When to use it

  • Risk assessment: Estimating the likelihood of events (e.g., disease, accidents) based on media coverage or personal experience.

  • Self-evaluation: Judging one's own traits or abilities by recalling relevant past instances (e.g., assertiveness, kindness).

  • Legal decision-making: Jurors evaluating the probability of events (e.g., a rare disease) based on ease of recall from testimony or personal anecdotes.

  • Marketing: Consumers assessing product quality based on how easily they recall advertisements or testimonials.

FROM THEORY TO EVERYDAY LIFE

In practice

01

Ease of Recall and Self-Judgment

In a classic study, participants asked to recall 12 instances of their assertive behavior (difficult task) subsequently rated themselves as less assertive than those asked to recall only 6 instances (easy task), because the difficulty of recall was interpreted as a lack of assertiveness.

02

Ease of Recall and Frequency Estimates

People estimating the frequency of a cause of death (e.g., accidents vs. strokes) often rely on how easily examples come to mind; vivid, memorable events (e.g., plane crashes) are overestimated in frequency relative to less vivid ones (e.g., asthma attacks).

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A MOMENT TO REFLECT

Put it to work.

  1. Recall a time when you judged the likelihood of an event based on how easily examples came to mind. Did that judgment align with actual probabilities?

  2. Consider a situation where recall was unexpectedly difficult—how did that difficulty shape your conclusion about the topic?

  3. How might you determine whether the ease of recalling information is a valid indicator or merely a result of misleading cues (e.g., media coverage)?

Connected ideas

Another lens can bring the same problem into focus.

CONTINUE THE CONVERSATION

Source texts

  • Heuristics and Biases The Psychology of Intuitive Judgment (Thomas Gilovich, Dale Griffin, Daniel Kahneman)
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