In Dr. Lu's study of eating disorders, she looked at the academic histories of girls with an eating disorder and girls who did not have such problem. In this example, the girls without eating disorders are the group.

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The control group is the group in an experiment or study that does not receive the treatment or intervention, allowing researchers to compare outcomes against the group that does receive the treatment. In this study, the girls without eating disorders serve as the control group.

In Dr Lu's Study of Eating Disorders, She Looked at the the Academic