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Author Question: Analysis of covariance is only appropriate for controlling extraneous variables in nonexperimental ... (Read 43 times)

karen

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on: Jul 8, 2018
Analysis of covariance is only appropriate for controlling extraneous variables in nonexperimental studies when randomization is not possible.
 
  A) True
  B) False

Question 2

Conceptual utilization of research involves a situation in which individuals are influenced in their thinking about an issue based on their knowledge of a study.
 
  A) True
  B) False


emilymalinowski12

  • Sr. Member
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Reply #1 on: Jul 8, 2018
Answer to Question 1

B

Answer to Question 2

A


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Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

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