The document discusses various theories of human development including:
- Psychosexual theory by Freud which includes oral, anal, phallic, latency, and genital stages.
- Psychosocial theory by Erikson which includes trust vs mistrust, autonomy vs shame, initiative vs guilt, industry vs inferiority, identity vs role confusion, intimacy vs isolation, generativity vs stagnation, and integrity vs despair.
- Cognitive development theory by Piaget which includes sensorimotor, preoperational, concrete operational, and formal operational stages.