Females display more emotional expression and are more skilled at decoding others' emotions  and understanding others' thoughts  — . Gems with strong, clever, and awesome heroines. Sex differences in early verbal and non-verbal cognitive development. Sequences in the development of competent play with peers: During atypical social development, foetal testosterone is also associated with the severity of autistic traits .
Preschool boys also display more solitary play than preschool girls, especially when young.
Keep track of everything you watch; tell your friends. As it was not possible to observe all the children who were present on the playground at the same time, the observer followed a same-age group of fifteen children during a session. Nevertheless, sex differences were also reported despite seemingly similar social environment and experiences suggesting a differential effect of the early environment. Following a cross-sectional design, children aged from 2 to 6 years old, divided into four age groups, were observed during outdoor free play at nursery school. Coplan RJ, Arbeau K.