I found this article that says that a person's IQ has been directly correllated to a person's ability to marry.
Quote:
According to two recent studies, in Britain and the United States, smarter girls were less likely to find a man who wanted to marry them. More bad news for girl geniuses, their chances were reduced dramatically in direct relation to their level of intelligence.
For each 16-point jump in their IQ, their marriage prospects decreased by 40 percent.
In contrast, boys’ chances for marriage increased by 35 percent with each 16-point rise.
The British study measured the IQ of 900 11-year-olds, revisiting them 40 years later to note how their lives had progressed. Their conclusion: men like to be in control of a relationship.
Another study at the University of Michigan, suggested that men would rather marry women in subordinate jobs because they think that high-powered career women are more likely to commit adultery.
Basically, girls want older, taller and smarter men. Guys want younger, shorter and dumber women. So a short 18 year old girl that thinks that Atlanta is a state will probably have no problems.