Lesson #15: Types
of Evidence
Objective:
As students begin to search for information
to give their persuasive speeches they need to understand what good evidence
is and what isn't. This assignment is to help them understand what kind
of information they need to use in order to build their credibility.
Materials: Test
of Evidence handout.
Reading material for tests of evidence.
Preset Activity:
Have students come up with something that
they think they could represent and write-up why they should represent
their items. Most likely students will pick something that they like to
do (i.e. mountain bikes, the students rides mountain bikes). Have students
tell what their thing is that they should represent, and why they should
represent these things. They can pick a product, idea, or anything they
would like.
Lesson:
There are different things that a message
and persuader must have in order to be effective. Building credibility
is the most important aspect of persuading. These are the elements that
a persuader must provide if they wish to persuade. The class picked
things that they knew about or liked. They did this because they could
claim some sort of expertise in that thing.
Speaker Attributes:
Trust, Expertise, and Dynamism.
-
Dynamism is something that you can't really
teach, it's something you either have or don't have. (Bill Clinton has
dynamism, it is suggested that is how he became the president, with his
dynamism.) You may be able to build your own dynamism.
-
Expertise and Trust can be taught. There are
things a speaker can do in order to make others believe they have these
attributes.
-
Reliability - Evidence should be drawn
from sources that have been proven to be correct many times in the past.
-
Expertise - Evidence should be drawn
from sources Having a background of knowledge in relevant information.
-
Objectivity - Evidence should be taken
from sources who hold a fair and undistorted view on a question.
-
Consistency - Evidence should agree
with other sources and should be consistent with itself.
-
Recency - Evidence should be based
on the most current information available.
-
Relevance - The facts and evidence
presented should be relevant to the claim that is made.
-
Access - Evidence should be drawn from
sources who have observed first-hand the matter being disputed.
-
Accuracy - Citations should be complete
and the sources of evidence fully identified.
Reflection: Complete
Test of Evidence handout.
This unit has been created by
Larry J. Colby
Eastern Michigan
University
April 26, 2003
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