We all know for that a family’s first child is smarter and more successful in life compared to their younger sibling. This assessment is confirmed by a new study performed by a team of medical researchers from the University of Edinburgh. The results show that first-borns would often start to show their intellectual prowess at the age of one when they’re able to beat their younger sibling’s scores on IQ tests.
There are many working theories regarding why first-borns are smarter than their younger siblings. According to one of them, it might have something to do with the familial climate. Previous studies suggested the reason why the first-borns are brighter compared to the family’s other children is that parents tend to spend more activities with their first children than with their siblings.
Furthermore, it would also seem that mothers tend not to smoke during their first pregnancy compared to the others. The scientists from the University of Edinburgh believe that there are many variables in this equation, but the result is always consistent – first-borns are smarter than their brother and sisters.
In order to see the gap between the two generations, the scientists studied the IQ test results of over 5000 children. The numbers suggested that by the time they reach one year old, the first-born’s IQ results tend to be, on average, a lot higher compared to their younger siblings.
Another factor that might shape this generation gap is the parents’ behavior towards their other children. As mentioned before, the scientists noted that parents tend to be more involved in their first-borns’ education and to spend more time with them than in the case of their younger siblings.
So, what does this all mean? For example, scientists have observed that parents would often engage in reading activities and various quizzes with their first-borns, but would often skip this stage in their other children’s education.
They’ve also found out that first-borns have more chances to be successful in life compared to their siblings. However, the University of Edinburgh researchers declared that this new study should be taken with a grain of salt, as the results do not state for a fact that younger siblings are considered, by default, less smart that their older siblings.
The researchers also stated that there are many exceptions to this rule, meaning that, in some cases, younger siblings tend to surpass their older brothers and sisters in intelligence.
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