Which is a question that the Big State University IRB should ask the researcher in order to determine if this study should be reviewed by a local Chilean IRB or ethics committee as well as the Big State University IRB? what will be the strong point of your investigation. He thinks obesity has to be with food or with organical, structural facts from the organism (protein deficiency).
Will the researcher have collaborators at the research site abroad?This depends on the population cut you choose and the type of research you decide to do. Although in this case to achieve the necessary data collection it would be good to have a team that will help you. Because for the field study to be meaningful, the amount of the survey must be significant and if it were to be done, it would only take a very long time. Although he could choose a survey system that was not face-to-face and in that case he would only deal with the analysis of the information. And of course writing the study.
Is important to say that on fields research, Interdisciplinary teams are a powerful tool to make data analysis and conclusions richer.
Does the potential subject population include children? This depends specifically on the population cut that the teacher decides. This must be stipulated in advance and developed in the research schedule. And it will be a decisive factor when establishing the questions, the type of questions in the survey and the population to which the survey will be destined.
Does the professor speak Spanish fluently? For sure, if not he would certainly need a great team to support his work.
Is the survey more than minimal risk? No, if it's properly planned and has got the considerable budget needed, it might be quite an interesting investigation