Which type of single case design methodology involves researchers having a small number of participants that receive the independent variable at varying times?

Even though replication is accepted as an important aspect of the scientific method, few scientists actually do studies that use the exact same procedure of past experiments. Why not?

a. Replications are rarely published. b. In reality, replication studies rarely reproduce previous results, and scientists don't want to have to deal with conflicting data. c. Scientists do not believe that replications are important d. Replications are typically very expensive.

The fact that administrative agencies often make and enforce rules and conduct adjudicatory hearings does not violate the principle of separation of powers, because

a. the creating body can also destroy an agency. b. agencies are set up so as to separate each of their functions. c. the judiciary has the power to review an agency's findings. d. Both A and C are correct.