A Pharmaceutical Company Wishes to Test the Efficacy of a New

Multiple Choice

A pharmaceutical company wishes to test the efficacy of a new antidepressant with a double-blind procedure. Which answer correctly describes the procedure the company would use?

A) The research assistants would know which participants were receiving the new drug and which were receiving an inert pill. Each participant would also know which type of pill he or she was taking.
B) The research assistants would know which participants were receiving the new drug and which were receiving an inert pill. Each participant, though, would not know which type of pill he or she was taking.
C) The research assistants would not know which participants were receiving the new drug and which were receiving an inert pill. Each participant, though, would know which type of pill he or she was taking.
D) The research assistants would not know which participants were receiving the new drug and which were receiving an inert pill. Also, each participant would not know which type of pill he or she was taking.