What is the role of control groups in research?
Control groups are essential in research as they provide a baseline to compare the effects of the treatment or intervention.
Why can't we just use the experimental group?
Using only the experimental group can lead to biased results. Control groups help isolate the effect of the treatment.
Can you give an example of a study that used a control group?
Sure! In a clinical trial for a new drug, one group receives the drug while the control group receives a placebo.
What happens if there is no control group?
Without a control group, it's difficult to determine if the observed effects are due to the treatment or other factors.
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