__________ described public opinion as "that great compound of folly, weakness, prejudice, wrong feeling, right feeling, [and] obstinacy."

Which of the following is most likely to be of concern in quantitative research?

a.) lengthy interviews b.) use of social media c.) assembling case histories d.) sampling

Which of the following can be described as the study of the simultaneous interaction of three or more variables?

a.) control b.) multivariate analysis c.) multicollinearity d.) multiple regression