Persuasuve Techniques - A Look At Logical Fallacies By Jennylanger
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Persuasuve Techniques - A Look At Logical Fallacies By Jennylanger
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Persuasuve Techniques - A Look At Logical Fallacies By Jennylanger - Transcript
Persuasive Techniques:
A Look at Logical
Fallacies
Created by Jenny Langer
Spring 2008
EDTEC 470, SDSU
What is Persuasion?
It is the process of
gliding people toward
the adoption of an idea,
action or attitude
Often it is illogical and
manipulative
Thirsty?
Let’s Break it Down…
The purpose of persuasion is to convince
someone of your point of view.
But how do we do that?
Good Question!
Logical Fallacy
Logical = something that is reasonable,
(it makes sense)
Fallacy = something that is faulty, (a
mistake)
So…
Logical + Fallacy = A Mistake in Reasoning
“Hey, Why are We Learning How to
Reason Incorrectly?”
Another good question!
It’s called
logical selfdefense.
Do you believe
everything you read,
hear and see? ►
Keep in Mind…
You cannot always believe what
you hear, what you see, and what
you read.
Advertisements, movies, commercials, politicians, critics and spokespeople
have an agenda in mind as well.
A Bandwagon Fallacy
The name comes from the phrase, "jump on the bandwagon“, a bandwagon being a wagon big enough to hold a band of musicians. In past political campaigns, candidates would ride a bandwagon through town, and people would show support for the candidate by climbing aboard the wagon.
It has come to mean joining a cause because of its popularity.
If it’s popular, it must be correct!
Lets look at an example of
Bandwagon
Turn to your neighbor and
discuss why this
advertisement is an example
of Bandwagon
Then as a class we will
share our ideas
Hint: Who is that guy?
Red Herring Fallacy
The name comes from the sport of fox hunting in which a dried, smoked
herring, which is red in color, is dragged across the trail of the fox to throw
the hounds off the scent.
Logical maybe…but unrelated
The argument given uses distraction to avoid the issue
Be Creative!!
With your partner, try writing a slogan or drawing an advertisement that uses a Red Herring Fallacy.
Here are some ideas you can use:
Increasing the school year to more than 180 days
Serving Krispy Kreme Doughnuts at school
* Remember you are trying to convince someone of your view by distracting them using something unrelated.
Emotional Appeal
This term refers to manipulating someone by targeting their emotions and feelings.
For example, the ad can make viewers feel happy, sad, nostalgic, fearful, angry etc…
Buying something will make them feel better.
Ad Hominem “Against the Man”
"She has never run anything. And the idea that she could learn to be President as an internship just doesn't make any sense. I've spent my life running things, I've learned how to run a business.”
Quote from former presidential hopeful, Sen. Mitt Romney attacking Sen. Hillary Clinton
In order to prove your
point, you make a
personal attack on your
opponent or opposing
side
Using Ad Hominem, One Might
Argue…
“You should buy a Macintosh. They are so much better than PC’s. Besides, Bill Gates is an idiot.
Microsoft isn’t so great anyway.”
With Your Partner
Examine the ad I am about to show you.
Which type of fallacy do you think Coca
Cola is using? And why?
In about 10 minutes, we will share our ideas as a
class.
And Here it is…
More Ads for Fun!
Persuasive Techniques:
A Look at Logical
Fallacies
Created by Jenny Langer
Spring 2008
EDTEC 470, SDSU












