8In any proceeding under this Act that affects a child, the court may, where it determines that it would be in the best interests of the child to do so, require that the child, a parent or any other person living with the child or in such a close relationship with the child as to be in a position to influence the nature of the care and control exercised with respect to the child, undergo a psychiatric, psychological, social, physical or any other examination or evaluation specified by the court, prior to or during the hearing, and in the event of the refusal or failure by any person to participate in an examination or evaluation, or to consent to the examination or evaluation of a child under his care, the court may draw such inferences as appear to the court to be warranted under the circumstances.