Description

Tendency for people to overestimate their abilities.

Lichtenstein, S., & Fischhoff, B. (1977). Do those who know more also know more about how much they know? Organizational Behavior & Human Performance, 20(2), 159–183.

Task

Participants respond to a performance task and then indicate the confidence in their response on a 11-point rating scale, ranging from 0% to 100% in steps of 10%. The performance task is the matrix reasoning task from the International Cognitive Ability Resource (Condon & Revelle, 2014).

Condon, D. M., & Revelle, W. (2014). The international cognitive ability resource: Development and initial validation of a public-domain measure. Intelligence, 43, 52–64.

Items (11)

See the International Cognitive Ability Resource

Scoring

Overconfidence is assessed through a calibration measure, defined as the difference between the mean confidence ratings and the mean accuracy (percentage of correct answers).

Sources

Berthet V. (2021). The Measurement of Individual Differences in Cognitive Biases: A Review and Improvement. Frontiers in psychology, 12, 630177.

Berthet, V., Autissier, D., & de Gardelle, V. (2022). Individual differences in decision-making: A test of a one-factor model of rationality. Personality and Individual Differences, 189, 111485.

Bruine de Bruin, W., Parker, A. M., & Fischhoff, B. (2007). Individual differences in adult decision-making competence. Journal of Personality and Social Psychology, 92(5), 938-956.