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عكس السير
Studying 250,000 people reveals the smartest children in families
A comprehensive Norwegian study revealed that older children tend to score slightly higher on IQ tests than their younger siblings, with a difference of up to about 3.2 points. However, these differences are not considered decisive in determining an individual's intelligence level. The study clarified that family and environmental factors play a more significant role than biological ones, and greater parental attention and early interactions influence cognitive development. The researchers emphasized that the impact of birth order is limited and cannot be relied upon to assess children's abilities on an individual basis.
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