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The Importance Of Birth Order

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Have you ever wondered why siblings tend to have such contrasting personalities? This essay will argue that the birth order affects the kind of person one becomes in various ways, by shaping them to acquire specific characteristics and prospects that will remain through adulthood. Particular attention will be given to the significance of family and environment, the ways that birth order affects the levels of trustfulness, reciprocation and extraversion and finally how it influences the likelihood of making or supporting new innovations in science. The family environment in which an individual grows up, has substantial effects on the kind of person they become later in life. It has even been argued, that the functional birth order, which is affected by the environment one grows up in, plays a bigger role in moulding them into the people that they become later in life than the biological birth order (Sulloway, 1996). Courtiol, Raymond and Faurie (2009) investigated the significance of birth order on trustfulness and reciprocation of individuals, with their hypothesis being that birth order would influence adults’ behaviour towards non-kin. The results of the experiment speak for themselves, as they indicate that a distinct trend can be seen in the characteristics of people depending on their birth order. According to Sulloway, it has been argued that the characteristic differences the birth order forms, are the consequences of sibling competition for parental investment

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