AO3 - gender schema - limitation
P: gender identity develops earlier than Martin and Halverson suggested
E: longitudinal study - 82 children - looked at the onset of gender identity
reports from mothers on their children language form 9-12 months
videotapes on children's play
19 months - labelled themselves as boy or girl
E: this is as soon as they can talk which suggests that children actually have a gender identity before this but cant communicate
L: underestimated childrens ability to use gender labels about themselves