Margaret Is the New Director of Research at a Well-Known

Multiple Choice

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

A) case studies.
B) correlational studies.
C) naturalistic observations.
D) double-blind experiments.