Development psychology is:

• influence of experience-Learning also called nurture,
• the unfolding of biological patterns-maturation also called nature,
• early development periods during which particular early experiences are essential and are considered critical periods or developmental markers, and
• the organization of behaviors and thoughts during particular early periods of development, stages, that are defined by relatively abrupt changes.

Developmental Psychology consists of:

1. Cognitive Development,
2. Social Development,
3. Moral Development, and
4. Chronological Development,

Erikson’s Stages of development are considered “Social Developmental Psychology”.

• 0-2 years of age- Trust versus Mistrust
• 2-3 years of age- Autonomy versus Doubt & Shame
• 3-6 years of age- Initiative versus Guilt
• 6-11 years of age- Industry versus Inferiority

Reference:

quickstudy.com (2001). Psychology. BarCharts, Inc.