Experiments and Scientific Research Alfred Adler was one of the first scientists to use birth order to assess his psychological clients in either the late 1800’s or early 1900’s. though Adler is the first person we know of who discovered the correlation between birth order and personality, Frank Sulloway is one of the most important modern psychologists to study this topic. Sulloway showed that firstborns …show more content…
Firstborns tend to be well-behaved and responsible since their parents were the least experienced and the hardest on the said first child. Middle children tend to be dominated by the oldest while the youngest tend to be attention seekers, and more likely to rebel since the parents are worn out from the other …show more content…
Middle children have been observed to be understanding, cooperative, flexible, and competitive due to them receiving the least amount of attention. They also tend to be late bloomers and are more likely to have power positions due to their peacemaking nature. The youngest have the most freedom since the parents know what to expect. They have a lot in common with the oldest children, and most commonly have entertainment jobs since their parent/s were the most laid back and lenient with said last-born child. Only children tend to be more verbal of their opinions, and have a more mature nature due to growing up around adults. They also have been shown to be intelligent, resourceful, creative, and confident since they spend a lot of time alone. They also seem to share a lot of characteristics with the firstborns and youngestborns due to the amount of attention they receive growing up. (Gross, "The Achiever, the Peacemaker and the Life of the Party: How Birth Order Affects