Rebecca is ten years old and her sister Sherry is five years old. Rebecca is an introvert, and though she is intelligent she does not speak up in the class. She does not want to give a wrong answer. She wonders to herself, how other students give wrong answers too so confidently? She feels she is incompetent and lacks the capabilities to be smart. This affects her mood often, and when she returns home from school she tends to not want to play with her sister.

Her sister, Sherry, is demanding and expects her elder sister, Rebecca, to play with her im- mediately after coming back from school. Sherry wants to play to compensate for the separation due to her sister's long school hours. She misses her sister when she is at school.
Sherry demands to play and Rebecca is in no mood to play.

Which stages of psychosocial and/or cognitive development are Rebecca and Sherry in?
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