Twelve-year-old ella will be in middle school next year. she will be going through many developmental changes in the next several years. jean piaget, eric erikson, and lawrence kohlberg each developed theories of childhood development. define one of the developmental stages described by each researcher. then describe how each of those developmental stages might apply to ella.

1. Formal Operational Stage (Jean Piagett)

2. Adolescence Stage/Identity vs. Role Confusion (Eric Erikson)

3. Conventional Stage (Lawrence Kohlberg)

Explanation:

According to Jean Piaget's Stages of Cognitive Development, twelve-year-old Ella will fall under the Formal Operational Stage. This is common for people who are in the age range of 12 years through adulthood. Since Ella is 12 years old, she falls under this category. This stage will make Ella practice more "abstract reasoning" and she will also have more potential for mature moral reasoning.  

According to Eric Erikson's Stages of Psychosocial Development, Ella will fall under the Adolescence Stage (Identity vs. Role Confusion) This covers the age range of 12-18 years old. She will start putting priority on social relationships. Teens at this stage develop a sense of self and personal identity. Succeeding in this stage will lead to an ability to stay true to yourself. Failure, on the other hand, will lead to confusion and a weak sense of self.

According to Lawrence Kohlber's Stages of Moral Development, Ella will fall under the Conventional Stage. This covers the age range of 8-13 years old. At this stage, Ella will focus on performing the right roles. She will try to fulfill the duties and uphold the laws and try to meet the expectation of others.