Question

When using _____ researchers compare the responses of two or more groups that are similar except on the characteristic being tested?

Answer 1

When using the experimental method, researchers compare the responses of two or more groups that are similar except on the characteristic being tested.

Answer 2

The correct answer is Experimental Method

In an experiment, you create two groups who are supposed to do something. There is only a slight difference between the two groups, either in the way of who is participating in the test or in how they do something or what they do. Based on this, you can observe how the different aspects introduced relate to the results.