KEY TAKEAWAYS •
There are different theories on development to include psychosexual, psychosocial, and cognitive theories of childhood development.
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Development begins in the prenatal period with germinal, embryonic, and fetal stages.
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A great many changes in cognition, language, and motor skills happen in the first few years of life.
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The developmental stages in adulthood start at age 20 and go through the young, middle, and older age groups.
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There are typically five stages of grief associated with the death and dying process.
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