Different types of research raise different ethical issues. Conducting a randomized controlled trial (RCT) has ethical components that are not present in a qualitative interview. Some methods can provide participants with anonymity, while others raise ethical issues around privacy. Conducting research on a person’s biological samples has different ethical issues compared to asking them personal questions about sensitive issues. Some of these ethical issues are relevant regardless of the specific topic or intervention being explored, so this can be another place for your exploration to begin. Subdomain changes: Biological Sample Studies; Clinical Trials (non-randomized); Individual Interview; Focus Group Interview; Randomized Controlled Trial (RCT); remove Qualitative; leave the other ones as they are.