What type of evaluation determines a service member’s eligibility for advancement?

The type of evaluation that determines a service member’s eligibility for advancement is the performance evaluation. Performance evaluations assess an individual's job performance, effectiveness, and overall contributions to their unit, which are critical factors in considering them for advancement within the ranks. These evaluations typically cover various competencies and job-related tasks, allowing supervisors to provide a comprehensive review of each service member's skills and readiness.

Performance evaluations are structured processes used across military branches to ensure that promotions are granted based on merit and capability. They take into account a service member's achievements, as well as their adherence to standards and values. Higher scores in these evaluations can directly impact a service member's advancement opportunities, making them a key component of career progression in the military.

Other options such as behavior assessments and peer reviews, while valuable in their own right, do not directly relate to advancement eligibility in the same formalized manner as performance evaluations. Fitness assessments, on the other hand, primarily gauge physical readiness and health rather than job performance or competencies crucial for promotion considerations.