Half Truths Are Not Whole Truths
Be wary of partial truths presented in persuasive messages, as they can be more dangerous than outright lies by omitting context and selecting favorable evidence.
THE IDEA
Whether it's Shell, AT&T, Facebook, or the Chinese government, the goal is the same. To persuade you when your guard is down. They know, and you know, that if the message were plastered with the word "ad" in big red letters, you'd ignore it. We would be remiss, however, if we didn't acknowledge that just because something's an ad doesn't mean it is false. Big companies are wary of ads backfiring. They fear the consequences of being outed as liars. But there are many forms of persuasion besides outright lying. An ad can tell only part of the story. It can leave out the broader context. It can ignore evidence that goes against the story the company wants to tell. It can emphasize some facts and de-emphasize others. It can use examples that tug at our heartstrings, even when those examples misrepresent general trends. A partial truth is often more dangerous and less easy to detect than a pack of lies. So, before fixating on the results of a new study, make sure you understand the broader context, that you have read the room, and that you resist the glow of the shiny new object until you've scoped out the territory and gotten the lay of the land.
When to use it
Evaluating advertisements and marketing claims
Analyzing political campaign messages and speeches
Assessing research studies presented in the media for cherry-picked data
Understanding corporate communications that may omit negative information
FROM THEORY TO EVERYDAY LIFE
In practice
Selective advertising
In a hypothetical example, a company's ad highlights that their product is recommended by 4 out of 5 dentists, but fails to mention that the survey was conducted only among dentists who received free samples.
A MOMENT TO REFLECT
Put it to work.
When you encounter a persuasive message, what questions can you ask to uncover missing context?
Can you recall a time when a partial truth influenced your decision? How did you later discover the full story?
How can you distinguish between a harmless omission and a manipulative half-truth?
CONTINUE THE CONVERSATION
Source texts
- Verified How to Think Straight, Get Duped Less, and Make Better Decisions about What to Believe Online (Mike Caulfield, Sam Wineburg)