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Darya [45]
3 years ago
7

Neither the participant nor the researcher knows to which group the participant is assigned.

Medicine
1 answer:
Naya [18.7K]3 years ago
6 0

Answer:

The answer is B double-blind study

Explanation:

In this type of scientific study neither the experimenter nor the researcher knows the study sample, during the period that the experiment lasts, in order not to influence the results.

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