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
C Air is a compound of two or more components that keep their own identifying properties, while water is composed of mixtures that combine to form a compound.