Cross-sectional studies

Question Description: Two (2) different coursework 11/2 pages each, apa, reference with 5yrs due on Friday.

1. Describe the common characteristics and design of a case-control study. Discuss the three important features when it comes to selecting cases and controls, and identify a situation when one of these might be violated. Discuss the limitations of using questionnaires for determining exposure status and provide examples of alternative strategies for collecting this information in a case-control study.