You might assume winning arguments — over politics, a work project, or even where to eat — requires hours of researching data and rehearsing well-informed points.
Not necessarily, says Jonah Berger, a marketing professor at the University of Pennsylvania's Wharton School.
That's because people often dilute their stronger claims by adding weaker, less relevant ones, Niro Sivanathan, an organizational behavior professor at London Business School, told CNBC Make It in November.
So, instead of hearing your strongest points, the person you're hoping to convince may walk away with a shallower understanding of your argument.
"If you have just one key argument, be confident and put that on the table, rather than feeling the need to list many others."
Persons:
Jonah Berger, didn't, Niro, Sivanathan
Organizations:
University of Pennsylvania's Wharton, CNBC, London Business School