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According to sociobiologists, since women's parental investment in reproduction is greater than men's, owing to human sperm being much more plentiful than eggs, and the fact that women must devote considerable energy to gestating their offspring, women will tend to be much more selective in their choice of mates than men. It may not be possible ...
It was found that the group of men slightly outperformed the women in both the verbal-numerical reasoning and reaction time tests. Subsequently, the researchers tested to what extent the differences in performance was mediated by the varying attributes of the male and female brain (e.g. surface area) using two mixed sample groups.
A 2009 study using data from the BBC of over 200,000 people in 53 nations showed that in all nations examined, men outperformed women in both mental rotation and in angle judgment, and that these differences increased with measures of gender equality. [52]
Women tend to score higher than men on measures of emotional intelligence, but gender stereotypes of men and women can affect how they express emotions. [7] The sex difference is small to moderate, somewhat inconsistent, and is often influenced by the person's motivations or social environment. [ 7 ]
A proposed evolutionary hypothesis is that men and women evolved different mental abilities to adapt to their different roles, including labor-based roles, in society. [50] For example, "ancestral women more often foraged for fruits, vegetables, and roots over large geographic regions."
However, the relationship between psychological maturity and age is a difficult one, and there has been much debate over methods of determining maturity, [40] considering its subjective nature, relativity to the current environment and/or other factors, and especially regarding social issues such as religion, politics, culture, laws, etc. [41]
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This research found virtually no difference in the variability of male and female infants birth weight, and it was concluded that if variability favoured any sex it was the female sex. [ 5 ] [ 6 ] [ 9 ] [ 10 ] The general consensus today is that boys have a higher birth weight than girls, and are more responsive to their mother's diet while in ...