Developmental Psychology
Developmental psychology studies how people change across the lifespan — cognitive, social, emotional, and physical development from infancy to old age.
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Scope
It covers cognitive and language development, attachment and socio-emotional development, and lifespan and aging processes.
Sub-topics
Core questions
- How do children's thinking and abilities develop?
- How do early relationships shape development?
- What changes across the whole lifespan?
- How do nature and nurture interact in development?
Key concepts
- Cognitive stages
- Zone of proximal development
- Attachment
- Socialization
- Lifespan development
- Nature and nurture
Key theories
- Cognitive development
- Piaget described qualitative stages through which children's thinking develops.
- Sociocultural development
- Vygotsky stressed the social mediation of development and the zone of proximal development.
- Attachment theory
- Bowlby theorized the infant-caregiver attachment bond as foundational for socio-emotional development.
History
Developmental psychology grew from Piaget's stage theory and Vygotsky's sociocultural approach, with Bowlby's attachment theory shaping socio-emotional research; it now spans the entire lifespan and developmental neuroscience.
Debates
- Stages versus continuity
- Whether development proceeds through discrete stages (Piaget) or as continuous change.
Key figures
- Jean Piaget
- Lev Vygotsky
- John Bowlby
Related topics
Seminal works
- piaget-1952
- vygotsky-1978
- bowlby-1969
Frequently asked questions
- What is the zone of proximal development?
- Vygotsky's concept of the gap between what a learner can do alone and what they can do with guidance — where learning is most effective.