What term describes an individual who performs up to expectations?

The term that best describes an individual who performs up to expectations is "competent." This term implies that the person has the necessary skills, knowledge, and ability to meet the required standards of performance in a given task or role. Competence reflects not just the ability to do a job but to do it effectively and to a level that satisfies the expectations set forth by their responsibilities.

While being motivated and responsible are important qualities in an individual, these terms denote different aspects of personal attributes rather than the direct assessment of performance skill or professional proficiency. "Aptitude" refers to a natural ability to learn or excel in certain areas, but it does not guarantee current performance levels. Competence, on the other hand, directly encapsulates the idea of meeting or exceeding expectations in a measurable way.