Psychology is divided into two main branches: experimental psychology which studies the mind through controlled experiments, and physiological psychology which studies the biological processes of the mind and behavior. Developmental psychology focuses on human growth and development across different stages of life including childhood, adolescence, and social and abnormal psychology. Applied fields of psychology include clinical, educational, and industrial psychology which aim to solve problems in healthcare, education, and workplace settings. Principles of developmental psychology include direction, continuity, sequence, maturation, and individual growth which influence how humans develop physically, mentally, emotionally, and socially over their lifetime.

1. “ Psychology” logos

2. 1.

3. 1.
1.1
(Experimental Psychology)
1.2
(Physiological Psychology)

4. 2.
2. . (Child
Psychology)
2. .
(Adolescence Psychology)
2. . (Social
Psychology)
2. .
(Abnormal Psychology)
2. .

5. 3.
3. . (Clinical
Psychology)
3. .
(Educational Psychology)
3. .
(Industrial Psychology)

6. 1.

7. 1.
1.1
(Maturity)
1.2
(Learning)

8. 2.
2.1
(Principle of Developmental
Direction)
2.2
(Principle of Continuity)
2.3
(Principle of
Development Sequence)

9. 2.
2.4
(Principle of Maturation
or Readiness)
2.5
(Principle of Individual Growth)

10. 3.
3.1
- (Physical
Development)
- (Mental
Development)
- (Emotional
Development)
- (Social
Development)

11. 3.
3.2
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