Final answer:
Sara's study habits, including setting goals, staying focused, and assessing her understanding, indicate she has strong self-regulation skills.
Step-by-step explanation:
Sara demonstrates strong self-regulation skills. Self-regulation is the ability to set goals, plan strategies to achieve those goals, and stay on task until completion, regardless of distractions or challenges. This process includes self-assessment, such as asking oneself questions to ensure understanding of the material, and maintaining motivation and focus even when the material is not inherently interesting. Sara's behavior aligns with the definition of self-regulation, where her persistence and dedication reflect her strong willpower and ability to delay gratification for long-term achievement, as investigated in Mischel's classic marshmallow test.