Final answer:
The ARRT permits a portion of the required competencies for radiography to be completed through simulation. The exact number is subject to change, so it's important to refer to the latest ARRT guidelines.
Step-by-step explanation:
According to the American Registry of Radiologic Technologists (ARRT), a limited number of required competencies may be performed through simulation. Specifically, the ARRT allows for a portion of the mandatory competencies in radiography to be completed using simulation, but it's essential to know the exact number currently allowed, which can change based on ARRT policy updates. Institutions and students must check the latest ARRT guidelines to ensure they are in compliance with the current requirements. Typically, the allowance for simulation in competencies is a minority compared to the total required, reflecting the importance of hands-on, clinical experience.