Final answer:
In a scientific experiment, a control group is managed similarly to the experimental group but doesn't receive the experimental variable, often receiving a placebo instead, allowing researchers to discern the actual effects of the treatment.
Step-by-step explanation:
In a scientific experiment, the control group is treated in a similar manner as the experimental group but does not receive the experimental variable or intervention. This group might receive a placebo or an alternative treatment that has no effect on the dependent variable being measured. The critical aspect of the control group is that it goes through all phases of the experiment without the exposure to the independent variable, which allows researchers to compare results and isolate the effects of the experimental treatment. In some studies, to prevent bias, both the participants and researchers may be blinded to who is receiving the active treatment, further ensuring that the results collected are solely due to the experimental variable.
For instance, if researchers are testing the efficacy of a new medication, the control group would receive a placebo pill while the experimental group receives the actual medication. That way, any changes observed in the experimental group's condition can be compared to the control group to determine if the medication made a significant difference. Thus, the final answer is that the control group receives all the same treatments except the experimental variable. This design allows for a clear understanding of the treatment's effectiveness.