45 C.F.R. § 63.32
(a) Definitions. For the purposes of this section “Child” means an individual who has not attained the legal age of consent to participate in research as determined under the applicable law of the jurisdiction in which such research is to be conducted.
“Data-collection instruments” means tests, questionnaires, inventories, interview schedules or guides, rating scales, and survey plans or any other forms which are used to collect information on substantially identical items from 10 or more respondents.
“Respondents” means individuals or organizations from whom information is collected.
(c) Protection of privacy.
(d) Clearance of instruments.