A researcher's expectations about a study can affect its outcome. The type of research design used specifically to address this problem is a(n):

Question

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A masked design (also known as a double-blind study) is specifically used to prevent researchers' expectations from affecting the outcome of a study. In this design, neither the participants nor the researchers know who is receiving the treatment and who is receiving a placebo, thus minimizing bias.

A Researcher's Expectations About a Study Can Affect Its Outcome