I believe the answer is: double-blind experiment
In double blind experiments, the subjects that receive the treatment is remained unknown by both the researchers and the subjects until the experiment is finished. The main purpose of double-blind experiment it eliminate the bias of perception that might exist among researchers.
Answer:
To achieve his purpose, Jackson encouraged Congress to adopt the Removal Act of 1830. The Act established a process whereby the President could grant land west of the Mississippi River to Indian tribes that agreed to give up their homelands.
Its is TRUE that West Virginia has many cities.
The professor's suggestion best illustrates an<u> "evolutionary" </u>perspective.
To utilize an evolutionary perspective is to think about all practices, (for example, fears, biases, connections, and so on.) as the aftereffect of transformative procedures. This point of view takes the position that practices appeared because of adjustments to living conditions.
Evolutionary perspectives on human conduct are nearly as old as the study of brain research itself. developmental brain science is centered around how advancement has molded the psyche and conduct.