Psychology and Chess Performance
In a 2009 study done in the University of Almeria in Spain, a brief ACT protocol was applied to international-level adult chess players and it was proven effective.
Another study with an equivalent ACT protocol was also applied to a group of young players. Results showed that 5 out of 7 participants that underwent ACT had statistically improved chess performance.
Sports psychology is a growing trend nowadays. In the case of chess, the use of therapy approaches such as modern psychology's scientifically proven ACT (acceptance and commitment therapy) are evidence of the value of psychological preparations in sports.