Be sure to use a control group when evaluating how to organize your experiment.
A control group was used to verify the results of the experiment.
Those in the experimental group experienced more weight loss on average than the control group.
The control group consisted of thirty males in their twenties.
When the experimental group had the same results as the control group, we concluded that the product was ineffective.
The researchers found that product worked when compared with the control group.
Your results will be more accurate if you use a control group in your experiment.