 Oldest, born. As compared to their siblings, they are rated more conscientious, less sociable and higher in leadership. They are also found to be more agreeable and less neurotic. In addition, they are found to get better grades and be more intelligent, especially in verbal abilities. Middle-born. Studies show that middle-born children are the least religious and conscientious as compared to their siblings. As well as being lower in these traits, they were also higher in impulsivity and openness to fantasy. Middle-born children are also found to be low in competence, achievement and self-discipline. Last-born. Studies show that last-born children are more altruistic, agreeable, tender-minded and warm. Additionally, they were rated as higher in trust, straightforwardness and compliance with the rules. Only child. Only children have higher life satisfaction. Because parents are able to put all their efforts and energy into one child, the only child never has to compete for attention or resources from his or her siblings. Hey Psych2Go viewers, it's Donna and many of these traits can be explained by parenting style. The first child may be parented stricter just because he or she is the first child. There are many factors that go into personality such as how big of an age gap there is between the siblings and gender. And if you're interested in learning more, definitely go and check out the article below and subscribe to the channel. If you want to know more about me, check my channel out in the description below. I also do psychology videos and weekly vlogs. Question of the day, how true are these findings for you? And with that, I'll see you later.