The role of domain-specific practice, handedness and starting age in chess

Abstract

The respective roles of the environment and innate talent have been a recurrent question for research into expertise. This paper investigates markers of talent, environment, and critical period for the acquisition of expert performance in chess. Argentinian chessplayers (N = 104), ranging from weak amateurs to grandmasters, filled in a questionnaire measuring variables including individual and group practice, starting age, and handedness. The study reaffirms the importance of practice for reaching high levels of performance, but also indicates a large variability, the slower player needing eight times more practice to reach master level than the faster. Additional results show a correlation between skill and starting age, and indicate that players are more likely to be mixed-handed than individuals in the general population; however, there was no correlation between handedness and skill within the chess sample. Together, these results suggest that practice is a necessary but not sufficient condition for the acquisition of expertise, that some additional factors may differentiate between chessplayers and non-chessplayers, and that the starting age of practice is important.