There are close to 100 million single adults in the United States alone.
Of those, 40 million use online dating services [ref]. claims responsibility for more than 9,000 marriages.
Specific facts and figures for online dating are hard to come by.
For obvious reasons, each individual site tends to inflate membership numbers and success rates in its promotional materials.
Once you’ve filled out a profile, online dating sites will provide a list of matches -- people they think you are compatible with. The more matching attributes that two profiles have, the higher “match percentage” the site will assign to it.
Each profile has a list of attributes or interests that members check off.
With a matchmaker, you're leaving the decision in the hands of another person. Matchmaking services can cost thousands of dollars, while typical dating-site fees average between and per month.
It might take more work than relying on the site's matching system, but browsing through profiles yourself may ultimately be the best way to find the right person.
And when you’re sitting alone in your living room filling out a personality profile on a Web site, there is an even greater chance that the resulting matches will not be perfect.
When you multiply the chance for inaccuracy by the number of users on a given dating site, complicated matching systems are probably not working much better than basic attribute-and-interest matching.
Online matchmaking site uses “29 key dimensions that help predict compatibility and the potential for relationship success.” Their system was developed by Dr.
Neil Clark Warren, who studied thousands of marriages to develop his “predictive model of compatibility.” Do such scientific methods work? However, scientific personality tests completed with the guidance of a trained researcher do not have 100 percent accuracy (it’s closer to 75 percent).