I don’t understand this Health & Medical question and need help to study.

Within the Discussion Board area, write 200–300 words that respond to the following questions with your thoughts, ideas, and comments. This will be the foundation for future discussions with your classmates. Be substantive and clear, and use examples to reinforce your ideas.

Human Subjects Considerations

Considering your own dissertation interests and the various ethical issues associated with human subjects research, describe what your target sample subjects might perceive as the risks for participating in your study.

My dissertation topic is: Parental Decision – Making on Childhood Vaccinations in the US