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Studying the Life Span: Five Characteristics, cont.. Change from conception to death
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1. Studying the Life Span: Five Characteristics The study of human development is the science that seeks to understand
how and why all kinds of people change over time
how and why they remain the same
the generalities and the specifics
Focus is on all kinds of people
age, socioeconomic status, gender, ethnicity, sexuality, background, culture, and nationality
2. Studying the Life Span: Five Characteristics, cont. Change from conception to death—the five characteristics
A Life-Span Perspective
multidirectional—nonlinear progression (1)
multicontextual—a number of contexts (2)
multicultural—many cultural settings (3)
multidisciplinary—many academic disciplines contribute data (4)
plasticity—change through the life span (5)
3. Multidirectional (1) Each aspect of life is multidirectional
physical health, intellectual growth, and social interaction
up, down, stable or erratic
Dynamic Systems
process of continual change within a person or group, in which each change is connected systematically to every other development in each individual and every society
4. Growth in height and weight is not linear
Fluctuations in body weight are affected by many other changes
appetite, nutrition, family, stress, exercise, culture, food supply, and climate
historical changes can have powerful effects
“obesity epidemic” in the U.S. today Physical Growth
5. Butterfly effect—the idea that a small action or event may set off a series of changes culminating in a major event
Opposite Idea
a large change may have little or no effect
Family Dynamics
influence vulnerability or resiliency
strong bond with loving caregiver can protect against adversity of many kinds Effects, Large and Small
6. Humans develop in many contexts that influence development
physical and family
focus on three facets of social context
historical, socioeconomic, and cultural Multicontextual (2)