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Author Question: In an experiment, participants are usually assigned to treatments using random assignment. The ... (Read 72 times)

saraeharris

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on: Jun 19, 2018
In an experiment, participants are usually assigned to treatments using random assignment. The reason for using random assignment is ____.
 
  a. to allow the experimenter to manipulate participant variables
 b. to allow the experimenter to manipulate environmental variables
  c. to help control extraneous variables
 d. to increase the reliability of the outcome measures

Question 2

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


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vseab

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

c

Answer to Question 2

d


saraeharris

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Reply 2 on: Jun 19, 2018
Great answer, keep it coming :)

cpetit11

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Reply 3 on: Yesterday
Excellent

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