This document discusses research ethics and outlines key concepts. It describes two types of ethical reasoning - deductive/principle-based and inductive/case-based. The Belmont Report established three core ethical principles for research involving human subjects: respect for persons, beneficence, and justice. It also discusses past ethical issues in research like lack of informed consent and the establishment of Institutional Review Boards to protect research participants according to federal regulations. The role of the IRB is to ensure research adheres to ethical standards and sound scientific principles.