Results, however, vary year by year, and also by age-group surveyed.For example, one study conducted by the University of Washington, Seattle found slightly, or significantly higher rates of infidelity for populations under 35, or older than 60.

One measure of infidelity is covert illegitimacy, a situation which arises when someone who is presumed to be a child's father (or mother) is in fact not the biological father (or mother).

Frequencies as high as 30% are sometimes assumed in the media, but research Such studies show that covert illegitimacy is in fact less than 10% among the sampled African populations, less than 5% among the sampled Native American and Polynesian populations, less than 2% of the sampled Middle Eastern population, and generally 1–2% among European samples.

According to The New York Times, the most consistent data on infidelity comes from the University of Chicago's General Social Survey (GSS).

Interviews with people in non-monogamous relationships since 1972 by the GSS have shown that approximately 12% of men and 7% of women admit to having had an extramarital relationship.

Charlie Stelle, have been researching the landscape and found that people over 60 represent the most rapidly growing demographic in online dating.

You can read an article about the ongoing study by clicking here.

Of course, there’s no one-size-fits-all, but their number one criteron make sense to us: an emphasis in profile questions on mutual interests and honest self-representation over looks and sexual prowess.

Bowling Green State University professors of gerontology, Dr. The study authors also delved into the question of which features make a dating site a good fit for seniors.

In that study which involved 19,065 people during a 15-year period, rates of infidelity among men were found to have risen from 20 to 28%, and rates for women, 5% to 15%.

A survey conducted in 1990 found 2.2% of married participants reported having more than one partner during the past year.

In one study by Blow, rates were higher in more recent marriages, compared with previous generations.