G.B.C. 4 Evidence

Strong evidence makes a strong argument

In order to score well on the communication of information section, you have to support your argument. This lesson will look at how you can use evidence to defend your position.


There are two scores on the G.B.C. test that are directly related to how you support your argument:

  1. Could not defend positions effectively; and
  2. Failed to use supporting evidence.

Using evidence effectively will ensure that you improve both of these scores.

Warm Up: 

Let's review the main types of evidence. Discuss with your teacher.

Irrelevant or insufficient evidence will make your argument flimsy and weak. Which kinds of evidence are more persuasive?


First let's think about the difference between evidence and data. How would you distinguish between the two?

Now let's think about a G.B.C.-style question:

Is your hometown a good place to live?

What evidence can you use to support your claim?


Now try answering one of the following questions:

  1. Why should a client choose to use your product/service over a less expensive competitor?
  2. What are the relative economic strengths and weaknesses of Japan and the United States?
  3. Are you satisfied with your government's foreign policy?