Assume you work for CDC and you were assigned to develop a study to investigate the relationship between consumption of sweetened soda and diabetes, which type of study design would you select:
a. ecologic, retrospective, prospective, cross-sectional or experimental?
b. Explain why you chose it.
c. Identify an advantage to this design and explain it in relation to your design.
d. Identify a disadvantage to this design and explain it in relation to your design.