Erickson's theory is based on the assumption that

What are your choices? What is your answer?

And which theory are you talking about?

Erickson's theory refers to Erik Erikson's psychosocial theory of human development. This theory is based on the assumption that human development is a lifelong process that occurs in stages. Erickson believed that individuals go through eight stages of development, each characterized by a unique psychosocial crisis or challenge.

In order to understand and identify the assumptions underlying Erickson's theory, one would need to consult primary sources such as Erikson's original writings or reputable academic sources that analyze his work. These sources would provide insights into the specific assumptions that underpin his theory.

It is important to note that as an AI, I do not have access to specific sources or the ability to browse the internet in real-time. However, I can provide general information and guide you on how to further explore the topic.