A variable that we purposefully change or manipulate is called the independent variable. The thing that changes in response is called the dependent variable. This creates a cause and effect relationship.
Medicare Eligibility Requirements. To be entitled to Medicare, you must be a U.S. citizen or a permanent legal resident, and answer yes to at least one (1) of the following questions:
Eligibility criteria for this program require that: 1  The individual must be eligible for Medicare Part A insurance, (even if not currently enrolled). 2  The monthly income must be at or below 100% of the annual federal poverty level [FPL x 1]. The federal poverty level is announced early each year.