Measurement
GRIT: Grit Scale
Reference and/or access link:
Duckworth, A.L., Peterson, C., Matthews, M.D. and Kelly, D.R. (2007). Grit: perseverance and passion for long-term goals. J Pers Soc Psychol, 92(6): 1087-101. doi: 10.1037/0022-3514.92.6.1087