Question: 1. Explain the concepts of lead time and critical point in epidemiology, and explain the significance in the natural history of disease.
Your response must be at least 200 words in length.
2. Describe at least two possible study designs that can be used to evaluate health services. Discuss challenges in interpreting the results of these studies.
Your response must be at least 200 words in length.
3. Discuss problems in assessing the sensitivity and specificity of health screening tests.
Your response must be at least 200 words in length.
4. Distinguish measures of process from measures of outcome in health services research. Provide at least one example of each type of measure.
Your response must be at least 200 words in length.
Gordis, L. (2014). Epidemiology (5th ed.). Philadelphia, PA: Saunders.