Ashrafzade, Tohid, Issazadegan, Ali, Michaeeli Manee, Farzane (2018). The Mediating Role of Study Skills in the Effect of Academic Self-Efficacy,Epistemological Beliefs and Academic Anxiety on cademic Performance of Middle School Students. *Knowledge & Research in Applied Psychology*, 19(4), 103-113. 10.30486/jsrp.2018.545642