clinical interview
cognitive development
continuous development
control group
correlation
correlational designs
counting-on strategy
cross-sectional design
dependent variable
direction-of-causation problem
discontinuous development
epigenetics
experimental control
experimental designs
experimental group
external validity
genome
hypotheses
independent variable
internal validity
interrater reliability
longitudinal design
methylation
microgenetic design
naturalistic observation
nature
neurotransmitters
nurture
random assignment
reliability
scientific method
sociocultural context
socioeconomic status (SES)
stage theories
structured interview
structured observation
test-retest reliability
third-variable problem
validity
variables