Investigating experiential effects in online chess using a hierarchical Bayesian analysis.

Adam Gee1, Sydney O Seese2, James P Curley2

  • 1Department of Statistics and Actuarial Science, Simon Fraser University, Burnaby, BC, Canada.

Journal of Quantitative Analysis in Sports
|June 17, 2026
PubMed
Summary

Winner-loser effects in psychology and sports are hard to study due to limited data. Online chess data reveals little evidence for consistent winner-loser effects across all players, though some individuals show effects.