Opposing evidence for kholbergs’s theory is Bem et al’s research: children were shown a naked baby and then a baby wearing gendered clothes. 40% of 3-5 year olds showed gender constancy, understanding the babies gender remained constant despite the clothing, decreasing the validity of kholbergs stages. BUT… not 100% of 3-5 year olds could show gender constancy which may be because we are taught from a young age to decipher gender based on appearance