text: Ever wondered if your personality was decided at birth? It turns out, the order in which you were born can not only have an effect on your personality, but also your chances of academic success. According to Canadian duo Mitchell Moffit and Greg Brown, from Toronto, who present an online science show, several theories suggest that where you are in your family determines who you are. Scroll down for video . (Pictured from left to right: Khloé, Kourtney and Kim Kardashian). The Kardashians are a strong example of a large celebrity family where the siblings share very different personality traits . On AsapSCIENCE on YouTube, the pair discuss how being the first, middle, youngest, or an only child affects us. The personality traits are also supposedly affected by whether parents have high expectations and how strict they were. FIRST-BORNS . According to Mitchell and Brown, first-born children are expected to be higher academic achievers and more ambitious. They also have a stronger sense of responsibility and are generally more mature. (Pictured from left to right) Beyoncé and Kate Middleton are famous first-borns. Oldest children tend be ambitious and have strong leadership skills . They also tend to have better leadership skills than other birth orders. The explanation is because although they get a lot more affection and attention from their parents, their parents have higher expectations as the first child. This works as a self-fulfilling prophecy: if there are high expectations placed on you, you are more likely to want to work hard and live up to these expectations. (Pictured from left to right) Kim Kardashian and Madonna are famous middle-borns. Middle children tend to be co-operative and are more likely to be social butterflies . MIDDLE-BORNS . Middle-born children apparently tend to be more co-operative, flexible and sociable. They are also the birth order that are able to make and maintain friendships easily. This is due to the fact that as a middle-born child, there aren't the high expectations of the first child, nor the relaxed attitude accorded to the last child. As a result, they also tend to be less ambitious than their older brothers and sisters, and so will have a more relaxed attitude in life. As middle children receive less attention than their other siblings, they seek out relationships and friendships outside of their family, and can be social butterflies. (Pictured from left to right) Jennifer Lawrence and Angelina Jolie are famous youngest children. Last-borns tend to be charming and confident . LAST-BORNS . The video highlights how youngest children tend to be likeable and charming. Other traits they carry are that they are more creative than older siblings, and have a stronger sense of security and confidence. As their parents have already had other children, they tend to be a lot less strict and are a lot more lenient with their youngest children. Parents' expectations will also be lower. As a result, youngest children will generally be less responsible and mature than older siblings, as they constantly feel like others will take the lead. (Pictured from left to right) Leonardo DiCaprio and Drew Barrymore are famous only-children. Only children tend to be creative and responsible . ONLY CHILD . Only children tend to be academically-able, creative and resourceful. They are also mature and responsible, and dislike disorder and like to be in control. Being a parent's only child, expectations are always high, but unlike a first-born, they never need to fight for the attention of their parents. Not to mention, being in a household with only adults often leads the child to mature more quickly and copy the actions of the parents, rather than being moulded by siblings' childish or youthful interests. But because they have never had to interact with siblings or companions of a similar age, they can have trouble relating to peers and can feel out of control when things in their life don't go their way. The presenters of the video highlight that these are just theories relating to order of birth. They add that gender, social status, age gaps between siblings and the number of siblings can play a huge role in determining traits. Moffit and Brown reiterate: 'Some aspects may be true for you, or make a lot of sense, but it wouldn’t be the same for every single person around the world in your specific birth order. 'It’s important to remember that your personality and your destiny in life is not predetermined at birth.'
target: Mitchell Moffit and Greg Brown from AsapSCIENCE present theories .
  Different personality traits can vary according to expectations of parents .
  Beyoncé, Hillary Clinton and J. K. Rowling are all oldest children .