Final answer:
The answer to the question is self-efficacy, which is one's belief in their own capability to complete a task, influencing their motivation and persistence when encountering challenges.
Step-by-step explanation:
The power of belief in oneself and the persistence when faced with obstacles is referred to as self-efficacy. The term self-efficacy is defined as one's belief in their own capacity to complete a task. This belief can stem from past successes in similar tasks and influences one's motivation and determination to face challenges. Albert Bandura, a leading researcher on the concept, emphasized the pivotal role of self-efficacy in motivating behavior and how it shapes individuals' actions and goals. Self-efficacy is not only about the raw ability but also about the confidence in one's skills, which impacts the effort one is willing to put forth in the face of difficulties and the resilience shown during setbacks in any given endeavor.
Grit or resilience can often be confused with self-efficacy; however, they are different concepts. Grit refers to personal perseverance and enduring dedication towards a long-term goal, while self-efficacy is more about the belief in one's ability to succeed at specific tasks. Both are crucial for achieving success and personal growth.
Therefore, the complete statement should be: Self-efficacy is the power of belief in yourself and how long you persist in the face of obstacles.