1. Interaction of Person and Environment
1.1. Psycho-social Theory( Erickson/Marcia)
1.1.1. human beings change throughout their lifetime in a series of eight psycho-social stages.
1.1.1.1. our ego identity is constantly changing due to new experience and information we acquire in our daily interactions with others
1.2. Cognitive Social Historical Theory( Vygotsky)
1.3. Dynamic Systems Theory( Fischer/Bidell)
2. Biological
2.1. Evolution Theory/Attachment Theory (Bowlby)
2.1.1. children who failed to establish a attachment by the age of 3 would be unable to do so and would suffer psychological problems.
2.1.1.1. strange situation test
2.1.1.1.1. securely attached child had the confidence to leave his or her mother and explore the surroundings whereas an insecurely attached child was “clingy”.
2.2. Psycho-sexual Theory ( Freud)
2.3. Cognitive Developmental Theory(Piaget)
3. Environmental
3.1. Learning Theories (Watson/Skinner)
3.2. Social Role Theory( Neugarten/Bandura)
3.3. Life Course Theory (Elder)
3.3.1. Development is lifelong, and…aging is a process that begins at birth, not some arbitrary point later in life
3.3.1.1. the relationship of inter-generational influences such as how grandchildren influence the outlook of their grandparents
3.3.1.1.1. a view of adulthood as shaped but not completely determined by social forces.