The objective of this research was to analyze the differences between expert and novice players regarding execution time (ET) and decision-making (DMA) in technical-tactical actions in football performed under laboratory conditions. Methodology: quantitative, comparative, analytical, and cross-sectional study. Four groups of players were simultaneously evaluated, divided into experts (two groups: Envigado FC, n = 16 and Leones FC, n = 12) and novices (two groups: Formantioquia, n = 14 and Unal, n = 13). Results: from a Student-t analysis, statistically significant differences were found between experts and novices in all variables. (DMA, ET, and Total Index: TI) (P < 0, 05); however, in the variable DMA, the effect size (0.37) and statistical power (0.26) show that the expert group has a higher level of performance compared to the novice group. Nevertheless, the opposite happens with the other variables, where the effect size and statistical power are 1.76 and 1.00 for ET and 1.1428571 and 0.99 for TI, which show that the expert group has a higher level of performance than the novice group. Likewise, using ANOVA (Analysis of variance) and Post hoc tests, there were no statistically significant differences between the two groups of experts and between the two groups of novices in any of the variables (DMA, ET, TI). However, Leones FC showed no difference in any of the variables with the two novice groups. Conclusion: there are differences in the level of performance between experts and novices in the TI and ET variables, but not in DMA if we take into account statistical significance, effect size, and statistical power. However, Leones FC showed no differences with the novices or with the expert Envigado FC, indicating that Leones FC can be assumed as an expert team similar to Envigado FC; however, its average values in ET and TI do not place it statistically above the two novices.
Keywords: psychomotor performance, cognition, soccer, stroop test, elite.