What is a common specialization for psychologists that focuses on the psychological development throughout life?

Developmental psychology is a field that specifically examines the psychological growth and changes that occur throughout a person's life span. This specialization investigates various stages of development, from infancy through old age, and considers how individuals change in terms of cognitive, emotional, and social aspects as they age. It encompasses a range of topics including language acquisition, moral development, identity formation, and the influence of family and culture on growth.

In contrast, cognitive psychology focuses primarily on mental processes such as thinking, memory, problem-solving, and language, rather than the broader scope of life-span psychological development. Behavioral psychology emphasizes observable behaviors and the ways they are learned through interaction with the environment, not necessarily addressing developmental changes across the life cycle. Neighborhood psychology is not a recognized specialization in psychology and does not pertain to individual development. Thus, the focus on life-span factors and developmental stages makes developmental psychology the correct specialization for this question.