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In Erikson's fourth stage, industry vs inferiority, children begin to become competent in academic and social skills, leading to confidence and ambition if they are met with encouragement, or insecurity if they are restricted or not reinforced.
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Erikson's sixth stage, intimacy vs isolation, individuals begin forming intimate relationships with others, resulting in either feelings of safety and commitment or fear, isolation, and depression.
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In Erikson's seventh stage, generativity vs. stagnation, adults feel a need to give back to others and promote positivity, leading to feelings of accomplishment and fulfillment if successful and feelings of disconnection and being "stuck" if not successful.