Identity - 2-3yrs - can label themselves correctly - don't understand that gender is stable across time for everyone
Stability - 3-4yrs - gender is stable across time for them - don't understand gender is consistent for other people and that looks affect gender
Constancy - 4-7yrs - gender is constant across time + situation and not fooled by looks. Begin to seek out gender appropriate role models to identify with
These were universal but the difference was the cultural differences between m/f