Essentials of Life-Span Development

The introduction presents life-span development as the scientific study of how people change and remain stable from conception through old age. It explains that human development is a lifelong process influenced by biological, psychological, social, and cultural factors. The chapter introduces the idea that development is not limited to childhood but continues throughout adulthood and later life.

The introduction describes several major themes of developmental science:

• Development is multidimensional: It includes physical changes, cognitive abilities, emotions, personality, and social relationships.
• Development is multidirectional: People experience both growth and decline at different stages of life.
• Development is shaped by context: Family, culture, education, socioeconomic conditions, historical events, and individual experiences influence development.
• Development involves plasticity: People can change and adapt as a result of experi