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 .

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.

all you have to do is look at the pictures to find hope this is the lesson you were also hope this .

answer: ‘no one should be discriminated against because he or she is not from a minority group’

because—> affirmative action means ‘a policy or program that provides opportunities for traditionally disadvantaged groups to them overcome the effects of discrimination’