Perseverance can actually be measured.
The Grit Survey measures the Character Strength of Perseverance
Angela Duckworth is the creator of The Grit Survey, which I came across during one of our modules on our Masters. We had to complete a survey at Authentic Happiness, the initiative developed by Dr Martin Seligman, Director of the Positive Psychology Center at theUniversity of Pennsylvania, and founder of positive psychology, a branch of psychology which focuses on the empirical study of such things as positive emotions, strengths based characters and healthy institutions.
The Grit Survey, assesses the tendency to sustain interest in and effort toward very long-term goals (Duckworth, Peterson, Matthews, & Kelly, 2007) and so of course similar to perseverance. The Grit Survey consists of 22 questions which the respondent answers by rating themselves ‘Not at all like me / A little like me / Somewhat like me / Mostly like me / Very much like me’ so a variation on the common 1-5 Leikert scale.