What will MOST likely happen if a child misses a critical period of necessary stimulation during their stages of development?

A critical period is a stage when certain stimulation is especially important for typical development. If a child misses that stimulation, the resulting developmental challenges may persist, even though the child can still grow and develop in other ways. So “They will have developmental challenges for the rest of their lives” is the most likely answer; it does not mean all growth stops.

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