Module three: vulnerable/special participant populations.

ABSTRACT This module is designed to sensitise you to the special needs of participants who belong to populations that are more vulnerable than other participant populations. These populations typically include incompetent persons women who may or may not be pregnant, children, prisoners and refugees, impoverished people, and ethnic minorities. These and similar groups deserve special consideration for a number of important ethical and historical reasons, specifically those that surround the potential for exploitation, problems with informed consent, and concerns about respect for participant autonomy. This module introduces modus operandi that are based on national and international research guidelines for dealing with vulnerable/special participant populations, offering contextually-dependent advice and relevant ethical considerations/arguments for and against their involvement in scientific research endeavours.