Excerpted from the Cornell Law site above
"(b)Limits on survey, analysis, or evaluationsNo student shall be required, as part of any applicable program, to submit to a survey, analysis, or evaluation that reveals information concerning—
(3) sex behavior or attitudes;
(4) illegal, anti-social, self-incriminating, or demeaning behavior;
(5) critical appraisals of other individuals with whom respondents have close family relationships;
(6) legally recognized privileged or analogous relationships, such as those of lawyers, physicians, and ministers;
(8) income (other than that required by law to determine eligibility for participation in a program or for receiving financial assistance under such program),
Since as William Bear reminds us, the questions in the ACE study (written for adults) involve questions that fall into items 2, 3, 4, and 5 on the list above must have prior written consent from the parent.