Who is responsible for administering standardized assessments?

The correct choice is the one that indicates that a proctor is responsible for administering standardized assessments. A proctor is specifically trained to oversee the administration of standardized tests to ensure that the testing conditions are appropriate and that all protocols are followed. This role is crucial to maintaining the integrity of the testing process, as they ensure that all test-takers are treated equally and that the assessments are conducted in a manner consistent with the standardized procedures outlined by the test creators.

In the context of standardized assessments, proctors support the administration process, which might include explaining the rules, managing time, and ensuring that there is no cheating or other disruptions. Their specific training and knowledge are geared towards effectively handling the nuances of standardized testing, making them the most suitable individuals for this task.

Other roles such as licensed personnel, RBTs, or teachers may have competencies that involve assessments in different contexts, but they do not typically have the specific training or authority to administer standardized assessments in a formal setting. Therefore, it's the proctor's role that is aligned with the requirements of conducting standardized assessments correctly and fairly.