Your biweekly stipend is contingent on working the weekly schedule outlined in your offer letter. If you work more hours, you will be compensated at the equivalent hourly rate. If your total hours exceeds 40 hours per week, you will be paid at 1.5x the equivalent hourly wage (see “Do I get overtime pay?”). If you work fewer hours without logging paid time off, you will only be compensated at the equivalent hourly rate.
