How First Born Children Are Smarter Than Siblings

Economists conducted a study to find out if the first born children had better intelligence quotient (IQ) than their younger siblings. The study found that first-born children were indeed smarter than their younger brothers or sisters, ending an age old debate on which of the siblings had a better IQ. The reason behind this ''improved'' IQ could be due to better mental stimulation by the mother or the father during growth and when the child is in the developmental stage.
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