Separation of performance-approach and performance-avoidance achievement goals: A broader analysis.

Murayama, K., Elliot, A. J., & Yamagata, S. (2011). Separation of performance-approach and performance-avoidance achievement goals: A broader analysis. Journal of Educational Psychology, 103(1), 238-256. https://doi.org/10.1037/a0021948    Request PDF Article