Chapter 1: Problem 5
Describe how the study of lifespan development expanded.
Short Answer
Expert verified
The study of lifespan development expanded from focusing primarily on childhood development before the 20th century, to including adolescence as a unique period of life during the 20th century, to later theories encompassing development during the entire lifespan. Milestones such as Terman's longitudinal design study gave major insights into the field. Today, lifespan development also tackles issues such as aging and chronic illness.