Overconfidence in people and Large Language Models (Public)
Project
UFS
Study ID sspp-2026-0049-v1
Study Title Overconfidence in people and Large Language Models
Authors Don Moore
Completion Time 15 Minutes
Close Date (UTC) Nov. 30, 2026
Discipline Psychology
Field Social Psychology
Country United States
Abstract
Both people and LLMs completed the same task: guessing others' survey responses, in the style of Family Feud. They then estimated their own and others' performance on this task. These estimates yield measures of overestimation, overplacement, and overprecision. Who was more overconfident by these measures--humans or LLMs?
Study ID sspp-2026-0049-v1
Study Title Overconfidence in people and Large Language Models
Authors Don Moore
Completion Time 15 Minutes
Close Date (UTC) Nov. 30, 2026
Discipline Psychology
Field Social Psychology
Country United States
Abstract
Both people and LLMs completed the same task: guessing others' survey responses, in the style of Family Feud. They then estimated their own and others' performance on this task. These estimates yield measures of overestimation, overplacement, and overprecision. Who was more overconfident by these measures--humans or LLMs?
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