Question

a study is created in which the participants of the study are unaware who received the treatment and who did not. which element of the experiment design is known to be a part of this study? (1 point) blinding replication randomization

Explanation:

Blinding in an experiment occurs when participants (single - blind) or both participants and experimenters (double - blind) are unaware of who is in the treatment group and who is in the control group. In this case, since participants are unaware, it's blinding. Replication refers to repeating the experiment, and randomization is about randomly assigning participants to groups.

Answer:

blinding