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There are two things that predict a preferred partner’s age: (a) your age and (b) your biological sex (male vs. From an evolutionary perspective, it makes sense for women to prefer mates with resources and to like partners who are more established, both of which are more likely in older partners. It turns out that, on average, women tend to be married to men a few years older than themselves (2-5 years).

Men, in contrast, are hypothesized to be most attracted to women in their reproductive prime, which tends to be when they are younger. Women’s preferences, on the other hand, hold relatively constant across their lives, not going more than a few years below their own age (extra-credit if you can identify the "cougar zone" in this figure), but women remain keen on men up to 10 years older than themselves. However, younger men (i.e., in their 20’s) tend to be married to someone of a similar age, but as they get older their wives get younger.

According to this rule, it would not be creepy for a 30 year old to date a 22 year-old, but an 18 year-old would be off-limits.

Although this is a fun rule of thumb, what does research say about age preferences for potential mates?

For example, by their 50’s the average male has a wife who is 10 years younger than him.

For example, in comparing the cross-section of the series of geological strata illustrated below, level 4 is older than 5 because it is below it. At a higher probability, the plus or minus factor will be larger.

Much to my surprise, when overlaying a line representing the rule of thumb on Kenrick and Keefe’s results (see red line in the figure below), you can see it closely matches the low end of the range (i.e., youngest preferred) for all but the oldest men.

However, it doesn’t represent women’s preferences at all.

This does not tell us how many years ago these strata were laid down. Many different calendar systems have been created around the world. The fact that chronometric dates are only approximations of the actual age does not mean that they should be distrusted.

It only tells us how old each is relative to the others. was 3000 years before the starting point in the Gregorian calendar, which is the one that the U. They all have in common the fact that they have a starting point from which one can count forward and backward. To the contrary, modern scientific techniques for chronometrically dating samples are highly reliable.




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