Question

When conducting an experiment, it is generally necessary to include __________ groups that are treated exactly the same as treatment groups except for the condition being tested.A. ControlB. VariableC. A maximum of fiveD. Experimental

Answer 1

Answer:

A. Control

Explanation:

In any scientific experiment, there are usually two groups under study that are similar to each other except that one receives a treatment or is being manipulated while the other is not. We have the treatment groups and the control groups.  

The treatment group is the group that receives a treatment or condition that is being manipulated, while the control group is the group that does not receive the treatment or condition being manipulated. The control group serves as a baseline that enable you to ascertain the effect a treatment being tested has.