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How Birth Order Shapes Personality

Author: Cici Zhang  

Editors: Elizabeth Li and Yueshan Yu

Artist: Helen Gong

Psychologists have engaged in a contentious debate for years about whether a child's personality is shaped by their family's birth order. The idea was first proposed by Austrian psychiatrist Alfred Adler, who argued that a person's birth order affects how unique personality traits develop in firstborns, middle children, and younger siblings. Extensive studies have been carried out to both validate and challenge Adler's revolutionary idea. This article combines historical ideas with modern research to examine how birth order affects personality and how sibling relationships might affect personal qualities.

Alfred Adler was one of the first advocates of the hypothesis that personality is influenced by birth order. He made the case that each sibling's unique role within the family, along with a range of experiences and expectations, affects their personalities. Firstborns, for instance, are usually characterized as trustworthy, responsible, and goal-oriented. Adler suggested that as the eldest kids receive the majority of their parent's attention, they grow to feel more in charge and accountable. The need to set an example for their younger siblings may affect their drive for success. Capable, adaptive, and talented middle children are highly regarded. Middle children may have a strong need to assert their identity and seek acknowledgment in diverse ways since they are positioned between older and younger siblings, according to Adler. This could lead to the development of social skills and flexibility. Younger kids are typically seen as less responsible, more sociable, and more likable. Young children, who generally are the center of attention and receive less strict parenting, may acquire attributes linked to extraversion and creativity, occasionally losing sight of their feelings of responsibility.

Research reviews of Adler's birth order hypothesis have yielded results that reveal a more nuanced understanding of the influence birth order has on personality. For instance, a study by Zajonc and Markus found that firstborns typically exhibit higher levels of intelligence and success, as well as greater degrees of conscientiousness and leadership. This is attributed to their early exposure to responsibilities and their parents' high expectations. The debate on whether birth order influences factors beyond family dynamics and parenting style continues. According to Sulloway, middle children may develop social and adaptive skills as a way to cope with family challenges and gain parental attention. Contrary to popular belief, they might even develop these skills to unusually high levels. Younger children, often perceived as self-assured and bold, may possess higher levels of imagination and self-confidence, as claimed by Pruijt. Their role as the family's “baby” and the more relaxed parenting styles they experience may be the cause, but it can also occasionally lead to issues with responsibility and independence.

Current research indicates that, while birth order can influence personality, it is substantially moderated by other factors such as inheritance, parenting techniques, and cultural background. For example, using genetic data and educational information from a large Norwegian cohort, researchers discovered that differences in educational attainment are most likely driven by factors occurring after birth, which is consistent with hypotheses concentrating on changes in home circumstances. 

Studies conducted across cultural boundaries have further shown that the influence of birth order can vary greatly based on family arrangements and societal standards. Birth order may have a more pronounced effect in cultures with different family responsibilities and expectations. In hierarchical cultures, such as traditional Asian societies, firstborns often face higher expectations, which can enhance traits like conscientiousness, while its impact may be less pronounced in more egalitarian societies. Furthermore, parenting techniques, like the degree of participation and the emotional climate within the family, might change the way that personality is influenced by birth order. For instance, a study by Sulloway discovered that birth order may have a more noticeable impact on personality in families with high levels of parental involvement. These results stress the intricacy of personality development and show that an individual's features are shaped by a multitude of interrelated circumstances, of which birth order is only one. Birth order's impact on personality is a complex subject. 

Alfred Adler's early theories provided a fundamental framework, but more recent research reveals a more sophisticated perspective. Certain personality qualities are shaped by birth order; however, this influence interacts with a number of other factors. The larger context in which personality development takes place must be taken into consideration as research continues to progress. This knowledge can inform many facets of psychology, such as family counseling and clinical practice, by educating researchers and other experts in the field on the implications of their work. For example, therapists can better understand and address family dynamics in their profession by recognizing the influence of birth order, and parents can gain significant insight into understanding and supporting each child's individual needs. 

 

Citations:

Adler, Alfred. Understanding Human Nature. Garden City Publishing Co., 1928.

Dheivamani, A, and S Venkataraman. "Influence of Parental Involvement on Secondary

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2021,  https://doi.org/10.22192/ijamr.2021.08.11.009. Accessed 17 Aug. 2024.

Gonzalez, Ricardo, and Vitor V. Gouveia. "The Effects of Birth Order on Personality and

Academic Achievement: A Meta-Analysis." Journal of Personality Research, vol. 12, no. 2,

2019, pp. 134-150. Journal of Personality Research, doi:10.1037/jpr0000123. Accessed 17

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Neyer, Frauke J., and Julia Lehnart. "The Impact of Birth Order on Personality." The

Handbook of Personality Psychology, edited by J. L. Hsu and E. J. Timmerman, Routledge,

2007, pp. 159-178.

Pruijt, H. "The Influence of Birth Order on Personality Traits: Evidence from a Large

Sample." Journal of Personality Studies, vol. 21, no. 3, 2017, pp. 245-261.

Røysamb, Espen, and Knut Tambs. "Birth Order and Educational Outcomes: Evidence from

a Large Norwegian Cohort." Proceedings of the National Academy of Sciences, vol. 119, no.

Smith, John. "How Birth Order Affects Personality Traits." Personality Insights, Insight

Publications, 22 June 2023, www.personalityinsights.com/articles/birth-order-

personality. Accessed 17 Aug. 2024.

Sulloway, Frank J. Born to Rebel: Birth Order, Family Dynamics, and Creative Lives. Pantheon

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"The Influence of Birth Order on Personality." Psychology Today, Sussex Publishers, 15 May

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Zajonc, Robert B., and David E. Markus. "Birth Order and Intellectual Development."

Psychological Review, vol. 82, no. 1, 1975, pp. 74-88. 

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