When a double-blind study is not possible,an acceptable alternative may be a ________.
A)A matched groups design
B)A within-groups design
C)Use of a control group
D)A masked design

Question

Quizplus · Accepted Answer

When a double-blind study is not possible, a masked design can be an acceptable alternative. In a masked design, the researcher is aware of the treatment and control groups, but the participants are unaware. This reduces the potential for bias in the results. Matched groups and within-groups designs do not address the issue of potential bias due to lack of blinding, and the use of a control group alone does not control for potential confounding variables.

When a Double-Blind Study Is Not Possible,an Acceptable Alternative May