Although children observe both sexes, they're only likely to repeat behaviours modelled by individuals they identify with. So, girls are likely to imitate behaviours shown by girls, and same with boys. Boys may see their mothers clean and cook in the house, but unlikely to copy that behaviour. Info about reinforcements is stored as expectancy of future outcomes. So B's theory moved from behaviourism as mental representations are involved. When appropriate situations occur, if they have observed a reward for a behaviour, its more likely to imitate this behaviour than one which wasnt