lcoatesxo681 lcoatesxo681
  • 21-07-2017
  • Social Studies
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In order to ensure that experimental and control groups are similar before the experiment begins, social scientists sometimes:

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yohannasuperotexfj yohannasuperotexfj
  • 21-07-2017
-pair subjects who are identical on relevant variables and assign one to the control group and one to the experimental group
-create groups that are equivalent in terms of their averages on some relevant variables
-randomly assign subjects to the experimental and control groups
-match subjects on relevant variables
-(all of these choices)
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