The purpose of this study was to examine the relationship between the psychological skills of high school basketball players with DIPCA.3 and cognitive training and the effects of EFF representing stats and cognitive training. The results showed that psychological skills attributed to EFF had a 46–74.9% contribution rate. Furthermore, regression equations were obtained for “Will to Win,” “Self-Control,” “Concentration,” and “Judgment” for Pre, “Cooperation,” “Will to Win,” “Decision Making,” “Confidence,” and “Self-Control” for Int, and “Relaxation,” “Will to Win,” and “Patience” for Post. Regarding the effects of psychological skills and cognitive training, significant main effects were found in the “self-confidence,” “operational ability,” and “cooperativeness” factors, “total score,” “willingness to self-actualize,” “self-confidence,” “decisiveness,” “predictive ability,” “judgment,” and “cooperativeness” scales, indicating a significant effect of change over time. The results also showed a certain degree of relationship between EFF and psychological skills, and although cognitive training improved psychological skills over time, it was difficult to say that this was solely due to the effect of cognitive training. However, because improving psychological skills may lead to improved basketball performance, it is important to reexamine cognitive training from qualitative and quantitative perspectives and to develop training that uses the latest ICT and other technologies.
