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The variability hypothesis, also known as the greater male variability hypothesis, is the hypothesis that males generally display greater variability in traits than females do. It has often been discussed in relation to human cognitive ability , where some studies appear to show that males are more likely than females to have either very high ...
The authors note that greater male variability is not ubiquitous, and ratios less than 1.0 have been reported in some national and international data sets. [10] A review by Hyde et al. (2009) also evaluated the topic of greater male variability in mathematics performance. [11]
One proposed explanation from J. K. Chambers is the notion that women lead sound change because of some inherent biological verbal advantage. Under that view, women command a greater range of variants and styles, despite similar gender roles, because of sex differences. [3]
Differences in variability of IQ scores have been observed in studies, with more men falling at the extremes of the spectrum. [ 20 ] [ 21 ] Because social and environmental factors affect brain activity and behavior, where differences are found, it can be difficult for researchers to assess whether or not the differences are innate.
However, the hunting theory may have difficulty explaining differences regarding features such as stronger protective skeleton, beards (not helpful in hunting, but they increase the perceived size of the jaws and perceived dominance, which may be helpful in intra-species male competition), and greater male ability at interception (greater ...
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Bateman's principle, in evolutionary biology, is that in most species, variability in reproductive success (or reproductive variance) is greater in males than in females. It was first proposed by Angus John Bateman (1919–1996), an English geneticist. Bateman suggested that, since males are capable of producing millions of sperm cells with ...
Male Libido and Age Libido tends to decrease with age in men and women. Part of this is due to natural changes in your production of testosterone that occur as you get old, but there are a few ...