When auditors apply MUS to a sample, the sample is selected using random sampling techniques

________ refers to gathering primary data by selecting matched groups of subjects, giving them different treatments, controlling related factors, and checking for differences in group responses

A) Experimental research B) Constructive research C) Observational research D) Survey research E) Descriptive research

Which of the following statements about social class is most likely true?

A) People in the lower classes purchase items less impulsively than upper class shoppers. B) Social scientists agree that there are an unlimited number of social classes. C) "New money" people possess inherited wealth, often acquired several generations before. D) It is virtually impossible to move from one social class to another. E) Social class is determined by a combination of factors such as income, education, occupation, and accumulated wealth.