a. Passive agreement is getting your audience to agree or disagree with an
idea.
b. Active agreement or a call to action is persuading the audience to act.
4. Take time to decide if its purpose is to inform or persuade.
C. Specific Purpose
1. Specific purpose is a declarative sentence telling the listeners what you want
them to understand, know, or believe by the end of the presentation.
2. You may revise your specific purpose as you research and write your speech.
III. Speaking to Inform
A. Ethos
1. Ethos refers to your credibility as a presenter as well as the credibility of the
information delivered.
2. Quintilian, a Roman philosopher and educator, viewed credibility as central to
effective rhetoric.
3. Quintilian defined rhetoric as “a good man speaking well.”
4. Ethos can be demonstrated by competence, trustworthiness, and goodwill.
B. Logos
1. Logos is the supporting information.
2. Informative presenters should view themselves as teachers.
3. A teacher researches, analyzes, and then presents an organized presentation.
C. Strategies for Informing With Excellence
1. Make certain that you are informing, not persuading.
2. Pay attention to your audience’s level of knowledge and understanding.
3. Incorporate a variety of supporting material.
IV. Speaking to Persuade
A. Types of Reasoning
1. Inductive reasoning involves building an argument by using individual
examples, pieces of information, or cases and then pulling them together to make
a generalization.
2. Causal reasoning is cause–effect relationship reasoning.
a. Demonstrate that certain events or factors (causes) produced, or in some
cases prevented, a certain result (the effect).
b. Inoculation: Mentioning other causes is “vaccinating” your audience
before they have time to consider other possible causes.
3. Deductive reasoning is when the speaker takes general premises and draws a
conclusion from that general information.
a. Often set up as a syllogism with a major premise, a minor premise, and
then a conclusion.