Lepola, J., Vauras, M., & Maki, H. (2020). Gender differences in the development of academic self-concept of attainment from the 2nd to the 6th grade: Relations with achievement and perceived motivational orientation. Psychology: The Journal of the Hellenic Psychological Society, 7(3), 290–308. https://doi.org/10.12681/psy_hps.24272