Final answer:
The correct answer is 'Life-Span Development' which studies the growth and changes from conception to death in several domains, such as physical, cognitive, and psychosocial aspects.
Step-by-step explanation:
Life-Span Development Defined
The concept of a lifelong process of development that can be studied scientifically is known as Life-Span Development. This field of psychology encompasses the study of growth and changes that occur from conception to death, across multiple domains including physical maturation, cognitive skills, moral reasoning, social behavior, and other psychological attributes. Developmental psychologists view development as a cumulative process that may be gradual, in the form of continuous development, or occur in distinct stages indicative of discontinuous development. The major domains studied in life-span development are cognitive development, physical development, and psychosocial development.
Several developmental theories contribute to our understanding of life-span development, including those by Erikson, Piaget, Freud, and Kohlberg, each focusing on different aspects such as psychosexual, psychosocial, cognitive, and moral development respectively.