GEOLOGY

Detailed explanation-1: -Control groups help ensure the internal validity of your research. You might see a difference over time in your dependent variable in your treatment group. However, without a control group, it is difficult to know whether the change has arisen from the treatment.

Detailed explanation-2: -The control group is just as important as the experimental group; without it there would be no experiment. Without a control group it is impossible to confidently determine which changes or outcomes are due to the intervention as opposed to being due to some other variable.

Detailed explanation-3: -The purpose of the control group is to create a benchmark to compare the experimental results to. It allows for study of the effects of the independent variable alone without confounding conditions.

Detailed explanation-4: -Which of the following is true of the control group? It is treated exactly the same as the experimental group, but without being exposed to the factor being tested.

Detailed explanation-5: -A Control Group is a group of individuals who received no treatment or a standard treatment. In contrast, a Comparison Group is a group of individuals who received no treatment or an alternative treatment.