The last finding of this study shows that mistake-handling learning and mathematical self-efficacy significantly explain the mathematical anxiety. The fact that the 51% of the variances were explained refers that positive changes of students only related to the variables of mistake-handling learning and mathematical self-efficacy will lead to a significant change in mathematical anxiety of students as well. However, positive beta values show that the changes to occur will be positive just like in correlation. In other words, the common increase in mistake-handling learning and mathematical self-efficacy will lead to the significant increase in mathematical anxiety. However, this finding shows that further studies are needed to analyze the relationships between mistake-handling learning and mathematical self-efficacy