Ravi is a participant in a cognitive experiment, but he does not know if he is in the experimental group or the control group. The researchers, however, are aware of the condition to which he has been assigned. The study in which Ravi is participating is called a(n) ________.

Question

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In a single-blind study, the participants do not know whether they are in the experimental group or the control group, but the researchers do. This is the case with Ravi, making it a single-blind study.

Ravi Is a Participant in a Cognitive Experiment, but He