Developmental psychology is the study of how people change physically, mentally, and socially throughout their lifespan from conception to death. It examines the biological, environmental, social, cultural, and behavioral influences at each major stage of development including prenatal, infancy, childhood, adolescence, and adulthood. Developmental psychologists investigate how nature and nurture interact at different life stages to shape individuals.

1. Developmental
Psychology

2. Developmental
Psychology
• The study of how people change
physically, mentally, and socially
throughout the lifespan.
• Influences: biological, environmental,
social, cultural, and behavioral factors.
• Individuals also shape the meaning of
events with their attitude, perception, and
personality.

3. Major Stages
• Prenatal Conception to birth
• Infancy Birth to 2 years
• Early childhood 2-6 years
• Middle childhood 6-12 years
• Adolescence 12-18 years
• Young adulthood 18-40 years
• Middle adulthood 40-65 years
• Late adulthood65-death

4. Major Stages
• Developmental psychologists investigate
the influence of biological, environmental,
social, cultural, and behavioral factors at
each stage of life.
• Nature-nurture: Although we are born with
a specific genetic potential, our
environment influences how, when, and
whether that potential is expressed.