Margaret is the new director of research at a well-known pharmaceutical company. She has been asked to design a set of research studies that will test the effectiveness of the new drugs that are being developed. Because Margaret is concerned about ensuring that experimenter bias and research participant bias do not influence the results, she should design a set ofa.double blind experimentsb.single blind experimentsc.triplle blind experiments

Margaret is the new director of research at a well-known pharmaceutical company. She has been asked to design a set of research studies that will test the effectiveness of the new drugs that are being developed. Because Margaret is concerned about ensuring that experimenter bias and research participant bias do not influence the results, she should design a set of double-blind experiments.

double-blind experiments is a study in which both the person implementing the experiment and the participant(s) are not aware of each other, i.e one in which neither the participants nor the experimenters know who is receiving a particular treatment.