The fact that there are individual differences among participants within each group in a multiple-group experiment is a reflection of variability. Group of answer choices controlled between-groups within-groups randomized

Which of the following people would a member of congress most likely contact for information on pending revenue legislation? a) a bureaucrat in a foreign government's revenue service. b) the host of a popular talk show c) the staff at one of the congressional support agencies d) athletes on a professional sports team form a major city