Question

An experiment in which neither the participants nor the individual researchers know if participants are in the experimental or the control group until after the results are tallied, is known as a __________.

Answer 1

Answer:

The answer is a double-blind study.

Explanation:

A double-blind study is a research method in which neither the participants or the researchers are aware about which group is receiving the treatment. This is done in order to avoid biases such as the placebo effect, as well as preventing accidental cues given by the researchers.

The greatest advantage of this approach is its high validity.