Final answer:
Darren's belief that his gender will not change is an example of gender constancy, which is the understanding that one's biological sex is fixed and doesn't change with external appearances or behaviors.
Step-by-step explanation:
Darren's statement that he will always be a boy and can never be a girl is an illustration of his grasp of the principle of gender constancy. Gender constancy is the understanding that one's gender remains the same even if clothing, activities, or hairstyles change. It's the realization that gender is fixed and biologically based. This cognitive development typically occurs in children between the ages of 5 and 7.
Gender identity, on the other hand, is a person's deeply held internal perception of their own gender, which may or may not correspond with the sex they were assigned at birth. While gender roles refer to the behaviors and attitudes that are considered appropriate for men and women in a given culture, and gender schema is a cognitive framework that organizes information relevant to gender.