Persuasive speech

Joseph Reagle

Our question(s)

  • How do rhetoricians approach persuasion?
  • How do psychologists do so?

Rhetoric

Aristotle’s On Rhetoric (440 BCE)

“Rhetorical triangle”

  • ethos: character/credibility of speaker (e.g., qualifications & trustworthiness)
  • logos: reasoning and structure of presentation (e.g., valid, sound)
  • pathos: emotions of audience (Tucker 2018, p. 276)

Mnemonic??

  • an ethical character,
  • being logical,
  • and feeling empathetic

Persuasion & proposition/appeal

  • persuasion: altering the thinking and behavior of others toward your ends
  • proposition: “the central idea statement … made advancing a judgment or opinion” (Tucker 2018, p. 269)
    • fact: truth of a statement (e.g., source of climate change)
    • definition: word/phrase meaning (e.g., 2nd Amendment)
    • value: good, bad, just, best, etc. (e.g., homeschooling is beneficial)
    • policy: what we should do (e.g., ensure clean water)

Monroe’s motivated sequence

In policy propositions, Monroe recommended five steps to persuade an audience toward action:

  1. attention (bring attention to problem)
  2. need (defined)
  3. satisfaction (solution and defense)
  4. visualization (positive or negative)
  5. action/appeal (Tucker 2018, p. 285)

Two-tailed arguments

a persuasive technique in which a speaker brings up a counterargument to their own topic and then directly refutes the claim (Tucker 2018, p. 272)

Psychology

Cialdini on persuasion

Examples of …

Reciprocation?

  • mailing labels
  • drug company freebies

Consistency?

  • restaurant reservations (public commitment)

Social Proof / Validation / Consensus?

  • Milgram, Bickman and Berkowitz: looking up
  • marketing “fastest growing” and “most used”
  • (don’t stress numbers of people doing negative)

Liking?

  • Tupperware
  • handsome fund raisers
  • similar demographics
  • good cop—vs bad cop

Authority?

  • crossing street
  • 80% dentists use

 

Scarcity?

  • “limited time only”
  • selling beef (upcoming shorting from exclusive info source)

International differences?

  • U.S.: reciprocity
  • China: authority
  • Spanish: liking
  • German: consistency

Mnemonic?

  • how to influence a RaSSCAL
  • Rocking idea learned in CLASS

Which is this?

Unity: “Not just like us, but of us.”

Conclusion

Wrap-up

ex. Controversy brainstorm

  • Alone 10m
    • What is your proposition/appeal given your scenario?
    • What principles and pragmatics might you invoke?
    • What rhetorical tactics might you use?
    • What psychological tactics might you use?
  • With class 🎲
    • Share the same, and we’ll provide questions and suggestions.

Review

  1. What is the mnemonic for Aristotle’s “rhetorical triangle”?
  2. What is Monroe’s Motivated Sequence?
  3. What is a two-tailed argument?
  4. What are Cialdini’s techniques?