“…Most of the empirical evidence on achievement emotions has originated from the extensive research on Anxiety, and Mathematics Anxiety in particular, which has typically been negatively associated to student math achievement and performance (Ahmed et al, 2010;Ahmed et al, 2013;Luo et al, 2014;Radišić, Vidennović, & Baucal, 2015;Ramirez, Gunderson, Levine, & Beilock, 2013;Wu, Willcutt, Escovar, & Menon, 2014). There is however mixed evidence, since math Anxiety has also been either positively related (e.g., Macher et al, 2013), or unrelated to students' performance (e.g., Kyttala & Bjorn, 2010), particularly when competence beliefs were taken into account (Erturan & Jansen, 2015). These results appear to corroborate one of the premises of the Control-value theory (Pekrun, 2006), according to which negative activating emotions may sometimes be detrimental to achievement and performance, but at other times may be beneficial.…”