Six sorts of theories that may be the reason why the eldest son and the eldest daughter are likely to retain excellent results

ByThomas Hawk

The composition of the brother-in-a-boy relationship that the first son is sports universal · excellent grades, the second son feels inferior to his first son in terms of ability and feeling inferiority "is often seen in movies and dramas, but depending on the order of the school It has been found out from multiple investigations that the difference in merit will come out. So, why the order of birth influences school performance, and the six theories summarized by researchers who conducted the surveyThe AtlanticIt is open to the public.

First Children Are Smarter-but Why? - The Atlantic
http://www.theatlantic.com/business/archive/2013/10/first-children-are-smarter-but-why/280725/?single_page=true

Strategic Parenting, Birth Order and School Performance
http://www.nber.org/papers/w19542

Birth Order and Student Performance: Summary
http://www.nber.org/digest/mar14/w19542.html

For mothers whose children have children between the ages of 10 and 14 from 1990 to 2008(PDF file)Result of investigationAccording to the 33.8% of children who have outstanding achievements in the class are the eldest son and the eldest daughter, the time when the birth of the second son, the second daughter, the third son, the third young girl was born slowed down. In addition, the proportion of the fourth and the fourth female is the highest in children who have retained the results below the middle. In addition to this survey, there are also Duke University and Washington UniversityJoint surveyIt is clear that the eldest son and the eldest daughter have better results than other brothers.


The following six theories are the reasons why researchers and economists who conducted the survey have derived why this resulted in such results.

◆ 01: attention dispersion theory

ByStephan Hochhaus

As the number of children increases, parental attention will be distributed accordingly. For that reason, the eldest son, the eldest daughter who lengthens the time to gather the parent's attention in a single person can improve his or her academic ability ... is "attention dispersion theory".

◆ 02: Genetic theory

ByGaetan Lee

The "genetic theory" is that children born later are "genetic talent" is decreasing compared to the eldest son and the eldest daughter. The fact that the eldest son / eldest daughter's IQ tends to be higher than other brothers is because "Birth Order, Family Size, and IntelligenceIt is pointed out also in the paper that it is.

◆ 03: "Children are enough!" Theory

BySamantha T.

As a result of having a child born as a result, a couple with hands came out and a couple ceasing making children by thinking "enough already!" Comes out, that the "child with hands" is the youngest child , And the theory that "the child in the lower rank does not grow grades" may be the data.

◆ 04: Teaching person zero theory

ByBubble Chasers

Children who are not living have no opportunity to teach because their eldest son and daughter teaches studying and discipline to their brothers, resulting in profits as a result, because there are no children born later than their own , Is "teaching person zero theory".

◆ 05: divorce theory

ByBrian Ambrozy

There are many cases that occur after divorce is given the first child, and it seems that children after the second son and second daughter may not receive sufficient education from parents.

◆ 06: Lazy parent theory

ByJustin

It is the theory that parents who were trying hard to raise the first child properly tired of child rearing as the second person and third person got tired, and the quality of care and education would go down. Duke University and the University of WashingtonJoint surveyThen, "There is a possibility that the eldest son and the eldest daughter are receiving more rigorous education than children of the second son and the second daughter as regards time and homework to watch TV", and there is a possibility that the lazy parent theory is not wrong It is said that there is.

These "theories" are those considered from the findings to the last. Since there are many examples of exceptions, "There is no better brother than my older brother"JaggiThe way of thinking like that is prohibited.