RESEARCH METHODS THINKING CRITICALLY WITH PSYCHOLOGICAL SCIENCE
THE NEED FOR PSYCHOLOGICAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The control group
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The experimental group
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The chosen group
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None of the above
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Detailed explanation-1: -The treatment group (also called the experimental group) receives the treatment whose effect the researcher is interested in. The control group receives either no treatment, a standard treatment whose effect is already known, or a placebo (a fake treatment to control for placebo effect).
Detailed explanation-2: -A placebo-controlled trial is a trial in which there are two (or more) groups. One group gets the active treatment, the other gets the placebo. Everything else is held the same between the two groups, so that any difference in their outcome can be attributed to the active treatment.
Detailed explanation-3: -That means volunteers are randomly assigned-that is, selected by chance-to either a test group receiving the experimental intervention or a control group receiving a placebo or standard care.
Detailed explanation-4: -The purpose of the placebo group is to account for the placebo effect, that is, effects from treatment that do not depend on the treatment itself.