Source
Messengers
Stephen Martin, Joseph Marks
Book by Joseph Marks and Steve Martin on what makes some messengers more convincing than others — the "hard" traits (status, competence, dominance, beauty) and "soft" traits (warmth, charisma) that drive focalism, plus the Halo Effect. Source for nearly all of Episodes 11 and 12. Cited again in Episode 28 for research on patients trusting health messages more when delivered by someone dressed as a doctor, even a known actor — see Authority Bias. Cited again in Episode 58 for the Pratfall Effect.
Cited in Episode 135 for the vocal-pitch study: participants heard a politician's speech digitally edited to a higher or lower pitch and were 30% more likely to say they'd vote for the lower-pitched version, despite identical content. Used to argue that if Elizabeth Holmes lowered her voice she was responding to a real, documented bias — and that the public fixation on her voice misses far larger factors (see Dominance Signaling, Halo Effect).
Discussed in
- Episode 11 — 11- What makes someone more convincing than others
- Episode 89 — Why a Footballer Warned us About Nuclear War (source for this episode's halo-effect definition and the Kevin Keegan/David Beckham/Ed Sheeran celebrity-messenger framing)
- Episode 12 — 12- The science behind influencer marketing
- Episode 28 — 28- Coronavirus- How to change the behavior of a nation
- Episode 58 — 58- Why brands should flaunt their flaws
- Episode 135 — 135-elizabeth-holmes-how-she-deceived-the-world-part-two