A 22-item survey asking participants to rate all items on a 5-point Likert scale ranging from 1 strongly disagree to 5 strongly agree.
Intellectual humility is conceptualized as "a nonthreatening awareness of one’s intellectual fallibility", resulting in "openness to revising one’s viewpoints, lack of overconfidence about one’s knowledge, respect for the viewpoints of others, and lack of threat in the face of intellectual disagreements."
Source: Krumrei-Mancuso, E. J., & Rouse, S. V. (2016). The development and validation of the comprehensive intellectual humility scale. Journal of Personality Assessment, 98(2), 209–221. https://doi.org/10.1080/00223891.2015.1068174