A PMHNP uses the Autism Diagnostic Observation Schedule (ADOS) to aid in the diagnosis of an 8-year-old boy. She asks the parents to leave the room while she conducts the exam. The parents are hesitant to leave their child and want to know why it is important to leave him alone during the exam. What is the PMHNP's most appropriate response?

"We need to ensure there is no cheating by you helping him."

"As parents, you will naturally want to provide assistance for your child, but the goal of the test is to see how the child does without your assistance."

"The test can be hard to watch, since it is likely your child won't be able to complete many of the behavior tests."

"Kids don't do as well when their parents are in the room, because they get too upset when they make a mistake."