development
physical development
cognitive development
psychosocial development
growth
aging
microsystem
mesosystem
exosystem
G. Stanley Hall
plasticity
naturalistic observation
case study
independent variable
dependent variable
quasi experiment
correlation coefficient
longitudinal design
cross-sectional design
cohort
ethnocentrism
systems thinking
Sigmund Freud
id
ego
superego
libido
natural selection
cultural evolution
genes
conception
30,000
half
turner syndrome
klinefelter syndrome
fragile X syndrome