1. Answer the following questions about the cross-sectional study design.

a. Would you consider cross-sectional studies as a type of observational studies or experimental

studies? Explain your answer.

b. What type of research question(s) can be assessed by cross-sectional studies?

C. What are some of the strengths vs. limitations of the cross-sectional study design?

d. Provide 3 examples of national surveillance system that collect data using population-based cross-

sectional surveys.