Table :
Table 7.1
Dividing the Life Span Into Developmental Stages
Stage
Approximate Age Range
Prenatal
Conception to birth
Infancy
Birth to 2 years
Childhood
2 to 12 years
Adolescence
12 to 18 years
Young adulthood
18 to 40 years
Middle adulthood
40 to 65 years
Late adulthood
65 years and over