Margaret Thatcher
British Prime Minister Margaret Thatcher participated in vocal training to project greater authority in her political role, with highly effective results.
Even without specific vocal training, research volunteers adopted powerful vocal elements when believed they had power and informational advantages in lab experiments by San Diego State University’s Sei Jin Ko and Melody S. Sadler with Adam D. Galinsky of Columbia.
Sei Jin Ko
Ko’s team asked more than 160 volunteers to read a text designed to evaluate speaking skills as a baseline for later comparison.
Then, they randomly assigned volunteers to a “high” ranking role with the prime “you have a strong alternative offer, valuable inside information, or high status in the workplace, or by asking participants to recall an experience in which they had power.
The remaining participants were told they had “a weak offer, no inside information, or low workplace status,” or were asked to recall an experience in which they lacked power.
Melody Sadler
To compare the impact of these power primes with the baseline reading performance, participants in both groups read a text about negotiating.
People in the high power group spoke in a higher pitch, with greater volume, and less tone variability than the low-power group.
In fact, team Ko found that people in the high power prime group had a similar vocal profile to Thatcher following her vocal training.
Mariëlle Stel
This contrasts previous research that demonstrated lower vocal pitch is associated with greater perceived power in work by Tilburg University’s Mariëlle Stel and Farah M. Djalal with Eric van Dijk and Wilco W. van Dijk of Leiden University, collaborating with University of California, San Diego’s Pamela K. Smith.
Eric van Dijk
In additional investigations by Ko’s team, additional participants listened to recordings of people who read in the previous condition, and accurately determined which volunteers conveyed higher status and were more likely to engage in high-power behaviors, based only on vocal elements.
Joris Lammers
“Power primes” or asking people to recall a time they had power and felt powerful, can significantly influence important life opportunities determined by hiring and university admission decisions, reported Tilburg University’s Joris Lammers with David Dubois of INSEAD and Northwestern’s Derek D. Rucker collaborating with Adam D. Galinsky of Columbia.
Thomas Mussweiler
Self-generated primes are especially influential because they lead to “assimilation” of the power suggestion, whereas primes provided by other people, as in Ko’s investigation, yield “contrast,” suggested Universität Würzburg’s Thomas Mussweiler and Roland Neumann.
Egon Brunswik
The strong impact of beliefs about power has been explained by Egon Brunswik of Berkeley’s “lens model” of perception, self-fulfilling prophecy theory by University of California’s Robert Rosenthal, and self-efficacy theory described Stanford’s Albert Bandura.
Francesca Gino
To personalize these theories and demonstrate the impact of power beliefs on life outcomes, Francesca Gino discussed her use of power primes to increase her confidence during presentations, leading to her current role at Harvard, where she pursues research on the impact of power primes and beliefs on personal performance and outcomes.
These findings suggest that beliefs about personal power shape behaviors like vocal profile, which can lead to differing outcomes in occupational and life opportunities.
Egon Brunswik’s Lens Model
- How do you modify your voice to convey power and authority?
- How do you develop confidence in your power?
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