15. Louis is conducting a study on whether sensory deprivation enhances creativity. After conducting the study, Louis realizes that the vast majority of the study participants are female. In this study, gender has now been revealed as a(n):

How does the principle of federalism affect the u.s. government? a. it guarantees that the united states will always be a representative democracy b. it ensures that the state governments have greater authority that the federal government c. it creates both separate and overlapping powers for the federal and state governments d.it divides the federal and state governments into three branches