Final answer:
G. Stanley Hall was one of the first American psychologists to define adolescence and the "storm and stress" view, suggesting it was a period of turmoil. However, most teens experience milder forms of conflict, with issues often resolving as they age. The concept of emerging adulthood indicates continued identity exploration into the early to mid-20s.
Step-by-step explanation:
The psychologist who was one of the first Americans to define adolescence and the "storm and stress" view of it was G. Stanley Hall. He was a pioneer in the study of adolescent development and famously suggested that adolescence was a period of turmoil and upheaval. However, subsequent studies, such as those by Steinberg & Morris (2001) and Barber (1994), have shown that most teens do not experience adolescent storm and stress to that intense degree. Conflicts during adolescence are often over daily issues such as homework, money, and curfews, and tend to decrease as teens grow older.
Although G. Stanley Hall's perspective painted a picture of adolescence as a period of significant conflict, it's important to note that the concept of emerging adulthood, as proposed by Arnett (2000), introduces a stage from 18 years to the mid-20s where identity exploration is crucial. This stage is seen as a transition period where individuals focus on work and love, finding their own unique path into adulthood.