Children who reach linguistic goals more quickly have a higher IQ in middle age. The strongest associations with IQ in middle age were with reaching the milestones ‘Naming objects/animals in pictures’, ‘Forming a sentence’ and ‘Sharing experiences’ more quickly than other children.

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Children who reach linguistic goals more quickly have a higher IQ in middle age. The strongest associations with IQ in middle age were with reaching the milestones ‘Naming objects/animals in pictures’, ‘Forming a sentence’ and ‘Sharing experiences’ more quickly than other children.