Both the researchers and the participants in a memory study are ignorant about which participants have actually received a potentially memory-enhancing drug and which have received a placebo.This investigation involves the use of
A) naturalistic observation.
B) random sampling.
C) the double-blind procedure.
D) replication.

Question

Quizplus · Accepted Answer

The use of a memory-enhancing drug and a placebo, along with the ignorance of both the researchers and participants about who received which, indicates the use of a double-blind procedure. This helps to eliminate any bias or influence in the study, making the results more reliable.

Both the Researchers and the Participants in a Memory Study