ABSTRACT
Most of the selected Ottawa Mental Skills Assessment Tool-3 (OMSAT-3) mental skills, with the exception of stress control, which may be another form of mental toughness, developed in their upbringing, or to genetics, showed improvements after a season-long training with mental skill interventions. Many of the findings clearly demonstrate both the scientific and practical reasons for the selection of the OMSAT-3 methodology. First of all, the OMSAT-3 provides quantitative data and interpretations via the internet at a reasonable price. Other instruments are more limited in their scope, and it regroups the theoretical underpinnings of these measurements. Research in Canada, France and Iran has shown a number of relevant elements which contribute to the understanding of mental skills and exceptional performance in sport. The most important elements are their interactivity, or how learning within one domain influences one or many other mental skills.
