International Group for the Psychology of Mathematics Education (PME)

Proceedings of the International Group for the Psychology of Mathematics Education · Volume 1

Is Confidence More Important Than Knowledge?

Alina Kadluba, Madeleine Kingan, Andreas Obersteiner, Jon R. Star

Technical University of Munich

49th Annual Conference of the International Group for the Psychology of Mathematics Education, PME 2026Helsinki27 July 2026 - 1 August 2026pp. 723–730ISSN 2790-36482026Scopus conference code 336559
⬇ Download PDF

Abstract

It is well documented that cognitive and non-cognitive variables are related to students’ academic performance. However, their specific predictive power is yet unclear. This study examined how prior performance, confidence, and calibration bias (under- and over-confidence) predict short-term subsequent mathematics performance across Grades 5–8. Students completed tasks of increasing difficulty and indicated confidence for each response. Prior performance consistently predicted later success, while confidence had an increasing effect with schooling. Under-confidence reduced subsequent performance, whereas over-confidence was slightly beneficial in older students. Findings highlight the diagnostic and motivational role of confidence and suggest that fostering self-evaluation and confidence can enhance learning outcomes.

Keywords

ConfidenceAcademic performanceCalibration biasSelf-judgment accuracy

Recommended citation

Kadluba, A., Kingan, M., Obersteiner, A., & Star, J. (2026). Is Confidence More Important Than Knowledge?. In Krzywacki H., Hähkiöniemi M., Haataja E., Hannula M.S., Hästö P. (Eds.), Proceedings of the International Group for the Psychology of Mathematics Education, Volume 1 (pp. 723–730). Psychology of Mathematics Education (PME). ISSN 2790-3648.

← All PME 49 Research Reports