| Stage | Age | Characteristics | What is learned |
| Sensory Motor | Birth-2 years | Recognizes relationships between perceptions and actions | Object identity
Object permanence t-s Cause and Effect |
| Preoperational | 2-7 years | Identifies consistant properties and functions to construct cognitive rules | Appearance-reality distinction
Perceptual classification Causal reasoning |
| Concrete Operational | 7-11 years | Shift from perceptual to conceptual based thinking; develops rules which can be flexibly applied | Reversibility of actions
Conceptual Classification Conservation principles |
| Formal Operational | 11-15 years | Solves abstract problems through logical operations; not limited to physical problems | Deduction
Hypothesis testing Reasoning hypothetically |
| (Post Formal Operational) | (adulthood) | (reason about the relative nature of knowledge and opposing points of view) | (Tolerance of ambiguity) |
Notice that the cognitive development in Piaget's model shows that there are periods of strain or crisis for the child and that those periods coincide with cognitive changes that allow for modes of expression and understanding that were not previously possible.
Another theory which helps to bring rites of passage in focus is Erikson's theory of social development.
| Developmental Stage | Age | Conflict | Challenge | Positive Resolution |
| I. Infancy | Birth-2 years | Trust v. Mistrust | Develop confidence while being dependent | Hope |
| II. Toddler | 2-3 years | Autonomy v. Shame | Adjust to social rules | Will |
| III. Early Childhood | 3-6 years | Initiative v. Guilt | Learn social limitations on behavior | Purpose |
| IV. School Age | 6-11 years | Industry v. Inferiority | Master culturally relevant skills | Competence |
| V. Adolescent | 12-17 years | Identity v. Role Confusion | Independent, positive view of self | Fidelity |
| VI. Young Adult | 17-40 years | Intimacy v. Isolation | Establish love and intimacy in relationships | Love |
| VII. Adulthood | 40-60 years | Generativity v. Stagnation | Make an enduring contribution to others | Care |
| VIII. Old Age | 60+ years | Integrity v. Despair | Accept one's life and gain broad view of past | Wisdom |
More detain can be found here: http://www.psychpage.com/learning/library/person/erikson.html
Erikson's stages may be seen as the manifestation of crises at particular times in the life cycle (som brought on by changes in cognitive development, some brought on by shared cultural expectations, some as a result of struggling with developing one's self concept, etc.). Rites of initiation typically occure in Stage IV or V and seem to deal with the challenges outlined by Erikson. What other rites of passage seem to be present at other stages of life?
More on rites of initiation and Erikson: