The Adult and Youth Questionnaire Matrix presents the questions and coded responses for the adult and youth surveys regarding incidents of family abductions, running away/being "thrownaway," nonfamily abduction, and "general missing." The questions presented from the two questionnaires refer to an "episode" rather than a particular type of incident. Codes are presented for recording the type of "episode" as either a family abduction, runaway/thrownaway, nonfamily abduction, or general missing and whether the response is from an adult or a youth. The adult and youth questionnaire errata describes errors found in the computer-assisted interview program.