Sec. 5. In determining whether closing a proceeding is necessary to protect the welfare of a child witness or child victim, the court shall consider the following:
(1) The nature of the allegation or defense.
(2) The age of a child witness or child victim.
(3) The psychological maturity of a child witness or child victim.
(4) The desire of a child witness or child victim to testify in a proceeding closed to the public.