[Source:  Medical X-Press]

Several studies had already demonstrated that children who have an elder sibling have poorer linguistic performance than those who have none. Now a research team at the CNRS, Hôpital Robert-Debré AP-HP, the EHESS, the ENS and the INSERM1 has reported a more specific result: this only concerns children who have an elder brother. This work was published on 14 August in Psychological Science.

Intuitively, it is tempting to think that a child who has an elder brother or sister will grow up in a stimulating linguistic environment and will develop their language skills faster than the family’s firstborn. However, several studies have shown the contrary: the acquisition of language in a child with an elder sibling is reported to be slower than a child who has none.

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