“…Based on our analyses, we conclude that red color does not enhance human performance in taekwondo, and that the evolutionary psychology of color theory (i.e., winning by wearing red is explained by an evolutionary or cultural association of the color with dominance and aggression), that might exert a psychological effect in an athlete who wears red does not apply to this combat sport. We suggest that their previous research might have been biased by not taking into consideration the human error in refereeing, a phenomena described before (Boyko, Boyko, & Boyko, 2007;Hagemann et al, 2008;Lopez & Snyder, 2013;Rodenberg & Choong Hoon, 2009). We agree with other interpretation that proposes the perception of colors triggers a psychological effect in referees that can lead to bias in evaluating identical performances (Hagemann et al, 2008), a subject that deserves further examination.…”