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Author Question: In an experiment, participants are randomly assigned to treatment conditions ____. a. to help ... (Read 143 times)

maegan_martin

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on: Jun 19, 2018
In an experiment, participants are randomly assigned to treatment conditions ____.
 
  a. to help protect the internal validity of the study
 b. to help protect the external validity of the study
 c. to help protect both the internal and external validity
  d. as an alternative to manipulation of variables

Question 2

In sampling notation, NCn refers to the ____.
 
  a. number of cases in the sampling frame
  b. number of cases in the sample
 c. number of possible subsets
 d. sampling fraction


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ynlevi

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Reply #1 on: Jun 19, 2018
Answer to Question 1

a

Answer to Question 2

d


maegan_martin

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Reply #2 on: Jun 19, 2018
Thank you!


ynlevi

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Reply #3 on: Jun 19, 2018
Happy to help


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