Answer:
Honor the child's decision
Step-by-step explanation:
The investigator should respect and honor the child's decision.
According to the ethical guidelines given by the American Psychology Association, for any researcher or experimenter to conduct a research or experiment, he or she must follow the ethical guidelines. It should be written in the informed consent that the participant can withdraw anytime from the study and have the full right to not take part in the study at the point of the time.