(2) Boys have a strong sense of vision and balance;

(3) Boys have higher mathematical ability;

(4) Boys are more aggressive.

In addition, there are some possible differences, for example, men are more active and competitive in social interaction, while women are more sensitive to skin feelings and more suitable for expressing fear experiences. McBee pointed out that the gender differences found are average, and each gender has great variation. The characteristics of the two sexes intersect to a great extent. There are indeed qualitative gender differences in physical characteristics, but in psychological characteristics, the similarity between the two sexes is greater than the difference.

Extended data

People think that gender stereotype is the sociological result of childhood learning. There are three ways to form:

(1) direct reinforcement. Parents or adults directly and selectively reward and punish the behavior of boys and girls to make their behavior conform to their own gender. For example, boys will be stereotyped if they are rewarded for their boldness; Girls are blamed for this and will give up this behavior in the future.

(2) Same-sex imitation. Children acquire gender stereotypes by imitating the activities of same-sex adults.

(3) observation and learning. Through observation, children can distinguish the behavior patterns of different sexes in advance and predict the consequences of their actions, so the process of gender stereotype becomes more flexible and the process is gradually accelerated. It is generally believed that this theory does not further analyze the role of children's internal characteristics in the process of gender stereotype.