In a __________ study, neither the experimenter nor the participants know who is in the control group and who is in the experimental group.

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     triple-blind
      double-blind
      placebo
      single-blind
asked May 15, 2013 in Psychology by anonymous
    

1 Answer

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double-blind
answered May 16, 2013 by ProAnswers ~Top Expert~ (7,505 points)



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