| Cognition Jean Piaget Schema Assimilation Accommodation Sensorimotor Stage Object Permanence Preoperational Stage Conservation Reversibility
| Egocentrism Theory of Mind Concrete Operational Stage Formal Operational Stage Lev Vygotsky Scaffold Zone of Proximal Development (ZPD) Crystallized Intelligence Dementia
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| Language Phonemes Morphemes
| Semantics Grammar Syntax Universal Grammar (UG)
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| Cooing Babbling One-Word Stage Two-Word Stage Telegraphic Speech Overgeneralization
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| | Imaginary Audience Personal Fable Social Clock Emerging Adulthood Psychosocial Stages of Development Trust and Mistrust Autonomy and Shame and Doubt Initiative and Guilt Industry and Inferiority Identity and Role Confusion Intimacy and Isolation Intimacy Generativity and Stagnation Integrity and Despair Adverse Childhood Experiences (ACEs) Identity Social Identity Achievement (of Identity) Diffusion (of Identity) Foreclosure (of Identity) Moratorium (of Identity)
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