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Author Question: How do randomized controlled trials (RCTs) differ from other pretest-posttest designs? a) The ... (Read 89 times)

anjilletteb

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on: Jun 22, 2018
How do randomized controlled trials (RCTs) differ from other pretest-posttest designs?
 
  a) The focus is on intervention.
  b) The researchers use random selection.
  c) The experiment is in a lab.
  d) The participants are representative.

Question 2

What is a typical strategy used to ensure equivalence of experimental groups?
 
  a) Matching subjects at posttreatment
  b) Randomly assigning cases to conditions
  c) Post-testing nuisance variables
  d) Using a random number chart


makaylafy

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Reply #1 on: Jun 22, 2018
Answer to Question 1

Correct Answer: a

Answer to Question 2

Correct Answer: b


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