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Author Question: An ecological study focuses on groups of people and examines the relationship between exposure and ... (Read 117 times)

michelleunicorn

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on: Aug 21, 2018
An ecological study focuses on groups of people and examines the relationship between exposure and disease.
 a. True
  b. False
  Indicate whether the statement is true or false

Question 2

Prospective cohort studies use existing longitudinal data to look back for a temporal relationship between exposure factors and outcome development.
 a. True
  b. False
  Indicate whether the statement is true or false


perkiness

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Reply #1 on: Aug 21, 2018
Answer to Question 1

True

Answer to Question 2

False


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