 At this age, children's ability to make more global self-evaluations also allows them to recognize contentedness or dissonance with their gender assignment.Children's gender identity on these two dimensions is significantly correlated with their self-esteem, such that children with higher levels of typicality and contentedness report having higher self-esteem and worth.By 3 years old, children have acquired a basic vocabulary for labeling simple emotional experiences, using words such as "scared," "happy," and "mad."