On average, first born children tend to have slightly higher IQs than children born later in the family.

Name: On average, first born children tend to have slightly higher IQs than children born later in the family.
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Studies have shown that first-born children tend to have slightly higher IQs on average compared to their younger siblings. This could be due to factors such as increased parental attention and resources, as well as the opportunity to act as a mentor or teacher to younger siblings.

On Average, First Born Children Tend to Have Slightly Higher