Self-Discipline (Conscientiousness facet)
A facet measuring ability to persist with difficult tasks, resist temptations, and maintain focus. Central to willpower and goal achievement.
Self-discipline is the executive function facet of Conscientiousness — your ability to do what you intend to do, even when it's difficult.
This predicts academic success better than IQ (Duckworth & Seligman, 2005) and is more trainable than raw ability. High self-discipline: sticks with exercise plans, meets deadlines, resists distractions. Low self-discipline: starts strong but loses motivation, procrastinates, gets distracted.
Importantly, self-discipline is a limited resource (ego depletion theory) — it's not infinite. Supporting low self-discipline means reducing decision load (habits, systems) rather than relying on willpower.
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