Author Question: An ecological study focuses on groups of people and examines the relationship between exposure and ... (Read 69 times)

michelleunicorn

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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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Answer to Question 1

True

Answer to Question 2

False



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