Which of the following is a key element in determining eligibility for FMLA leave?

The key element in determining eligibility for Family and Medical Leave Act (FMLA) leave is the length of employment. Under the FMLA, an employee must have been employed with the same employer for a minimum of 12 months to qualify for leave. This requirement ensures that employees have established a relationship with the employer, reflecting a commitment to the workplace, which is a foundational aspect of the FMLA's entitlement provisions.

The other factors such as educational qualifications, job title, and company size do not directly impact individual eligibility under the FMLA. While company size does play a role in the applicability of the FMLA overall—specifically, only employers with 50 or more employees are covered by the act—the specific measure for determining whether an employee is eligible for leave focuses on the duration of their employment rather than these other elements. Thus, the correct focus is on the length of employment, making it the central factor in FMLA eligibility assessments.