Professor Wyler Has Obtained a Grant from the National Institute

Professor Wyler has obtained a grant from the National Institute of Mental Health to study the effects of violence in film on attitudes towards aggression among teenagers. He would like to study the effects in a range of socio-economic settings, from impoverished to very wealthy communities. Should he obtain approval from his institutional review board? Why or why not? Discuss potential ethical issues that he should consider related to research in an impoverished community.