For instance, people who meet online may be different from people who meet offline in some way not measured, such as motivation to find a spouse or impulse control.
Or perhaps the large pool of potential mates online allows people to be more selective in finding a compatible spouse, Cacioppo said.
She has ducked under a glacier in Switzerland and poked hot lava with a stick in Hawaii.
Meetings matter To find out whether meeting place influences the marriage in the long term, Cacioppo and his colleagues analyzed divorces, separations and marital satisfaction among their participants.
They found that divorce and separation were slightly higher in those who met offline, with 7.6 percent of that group split up compared with 5.9 percent of those who met online.
Couples who meet online and get married are slightly less likely to divorce than couples who first meet face-to-face, new research finds.
The study, a generally representative look at American couples married between 20, found that virtual meetings are becoming more of a norm: More than a third of married couples in that time met on the Internet.