Champaign, Illinois – A new study confirms that birth order has nothing to do with the personality development of a child.

A new research study has discredited the previous beliefs that the eldest children are considerably the smartest among the other children in a family. This has been a considerable belief within families as members usually perceive the eldest child to be better that those born later with regards to smartness, competitiveness as well as achievements.

However, the study indicated that the eldest children have different personality or traits compared to the younger ones. Their IQ is also better slightly, although these factors are not sufficient in making any meaningful sense.

According to the recent study, birth order does not equate significant differences because they are equal to only 0.02 relationships.

Psychology professor at the University of Illinois, and author of the study, Brent Roberts confirmed the aforementioned statement. He also said that in some cases, small effects could be profound such as a drug saving 10 out of 10,000 lives, he added.

Compared to a previous study, it concluded that firstborns are likely to acquire allergies, while the last-born are most likely to be promiscuous. Meanwhile, middle children are considered rebellious. The same study also suggested that men with older sisters are said to be incompetent.

Rodica Damian, co-author of the study and also a psychology professor, said that the findings of the previous research work were based on a small sample size, flawed and involved non-representative participant pools.

Furthermore, Roberts explained that the chances are always high in making mistakes during the comparison of children’s developments, saying that firstborns, since they are older have a better sense of responsibility. Frequently, the eldest children are also more focused, considering their relative age.

Roberts concluded that birth order does not definitely affect the personality development of children, by any means.