*2.1. Study Context*

Procedures for this study were approved by the governing Institutional Review Board (UTSA Approval Number: 14-241N). We worked closely with two school psychologists from a middle school in a rural town of Central Mexico to recruit youth to participate in a two-pronged study involving a short survey and a focus group about health. Prior to conducting the study, we trained the school psychologists remotely using Skype in all data collection procedures. All youth in the school were eligible for recruitment and were recruited by the psychologists. As migration (both legal and illegal) to the US is integral to the financial stability of the community, the disclosure of personal information to a binational research team was concerning to members of the community. Thus, the use of active and written consent was determined to be unethical and unnecessary by the research team. Alternatively, the school psychologists spoke with parents and youth to answer questions about the risks and benefits of study participation and to discuss confidentiality. Specifically, parents and youth were told that researchers from a university in the U.S. were interested in youth's health and health-related experiences. After discussing the study, any parents or youth could opt to not participate further.
