Dr Muma Wishes to Utilize Research Confederates in His Upcoming

Multiple Choice

Dr. Muma wishes to utilize research confederates in his upcoming studies. Which of the following would be the best reason to include a research confederate in an experiment?

A) Without a research confederate, the assessments would be unreliable.
B) The inclusion of a research confederate would increase internal validity
C) The inclusion of a research confederate would increase experimental control and therefore standardization.
D) The inclusion of a research confederate would decrease external validity and generalizability.