The results from the study therefore show that the mean preferred marriage age difference (3.04 years averaging male and female preferred age) corresponds very closely with the actual mean marriage age difference (2.99).
age disparity have developed over time and vary among societies.
Differences in age preferences for mates can stem from evolutionary mating strategies and age preferences in sexual partners may vary cross culturally.
For example, different age preferences may be a result of sex differences in mate values assigned to the opposite sex at those ages.
A study conducted by David Buss investigated sex differences in mate preferences in 37 cultures with 10,047 participants.
This study used 21,245 participants between 18 and 65 years of age who were not involved in a close relationship.