AO1

• Kohlberg's theory of gender development emphasises role of cognition in process of development 
• Kohlberg's stages

  1. gender identity - 2y, able to label own sex but unaware it is fixed
  2. gender stability - 3-5y, aware gender is fixed but confused about external changes in cuperficial appearance
  3. gender constancy - 7y, aware gender is the same across time for everyone regardless of outsie appearance
• gender schema theory

  Martin and Halverson suggested gender identity alone provides children with motivation to assume sex-typed behaviour children have organised groups of related concepts about sexes which provides a base for interpreting the environment and selecting sex appropriate behaviours