Question

In an experiment, one group of children is given a drink each day with a special vitamin supplement. A second group of children is given the same drink but without the vitamin. Later, all children are given an IQ test to see if the vitamin had an effect on intelligence. In this experiment, the children’s scores on the IQ test would be the____________.

Answer 1

Control variable

Step-by-step explanation:

During the conduction of experiments for research, a control variable is introduced as a variable the researcher conducting the experiment holds as a constant. It is neither the dependent variable nor the independent variable, but it is something that affects the outcome thereby making it important. Control variable and controlled variable are two different things as the latter is another name for independent variable.