Ethics in Research

Ethics plays an important role in conducting of research. While the
individual researcher is responsible for his/her ethical practice, any
research sponsored by an organization, university, or government
program has a review process guided by a code of ethics. Besides the
code of ethics, the Institutional Review Board (IRB) plays an
important role in monitoring research. Your task in this discussion is
to examine the origins of the IRB and analyze how the Review Board
guides or monitors research. In your 250-300 word post answer the
following three questions:

What does the IRB do to protect a research participant from harm?
One of the reasons for the existence of the IRB has to do with
screening research applications. What is the basis for such screening?
The IRB provides the guidelines for ethical research practice. What
would the researcher responsibilities be in terms of these guidelines?

Here is Chapter 3 from the text that will help you for the discussion.
Thanks for helping me once again.