Levinson's seasons of life theory

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Levinson's Seasons of a Man's Life

Kohlberg’s 6 Stages of Moral Development

Piaget's Theory of Cognitive Development

Piaget: Theory of Cognitive Development

Vygotsky's Theory of Cognitive Development in Social Relationships

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Behaviorism: Skinner, Pavlov, Thorndike, etc.

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Levinson’s Life Course Theory

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