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