Friday, July 1, 2022

Men With Older Sisters Are Less Competitive

A new study has come out that finds men who have older sisters end up being less competitive. This type of study has been one of the most studied in psychology, because researchers have always wanted to find out how personalities become affected by the sex of our siblings, and whether the order of birth has any impact on personalities of siblings. A lot of previous research though has been primarily people reporting information themselves, or with parents and other siblings reporting the information, which is not really a reliable way to measure these types of research questions.

bro and sisThis new study began looking at older literature findings, which showed a theory that men with older sisters were less competitive. Researcher Hiroko Okudaira and colleagues wanted to study this further, so the researchers took 135 high school students and had them participate in the first part of the study. There were 232 college students who took part in the follow-up portion of the study. The study involved the students completing maze challenges and various math tests, which were done using a piece-rate payment system. This system allowed the students to get a certain amount of points for each correct answer. There was also a study done using a tournament system, which meant the students could get a larger reward for answering the questions correctly, but only if they were better than the other students participating in the group. In the second trial, the students were able to choose which of the two systems they would want to use as their payment system.

During the first experiment, which was with the high school students and the mazes, the researchers found out that the boys tended to choose the tournament system, but the girls more often chose the piece-rate system. 61 percent of the boys chose the tournament system, while only 23.4 percent of girls decided to play with the tournament system. When the researchers looked at only the boys in the group who had an older sister, the boys chose the tournament option less than the other boys. Only 38 percent of the boys who had an older sister chose the tournament system. When the researchers used the college students and the math problems, there was once again a more competitive atmosphere with the boys than the girls. The college students who had an older sister though, showed a 21 percent decrease in wanting to enter the tournament system, compared to college men without an older sister.
There were other things that could have influenced the choices, such as risk-aversion and over-confidence, but the results of the study still managed to show that the boys with older sisters were less competitive. In order to ensure the study results held through other influences, the students all had a chance to change the piece-rate trial into a tournament trial from an earlier experiment, which could reveal more about risk-aversion or confidence levels of the subjects. Since this was based off of a previous experiment, there was also no competition involved in this particular study. The results though remained the same, which means that the other factors did not influence the decisions of the men.

There are two reasons why boys and men who have older sisters would be less competitive, with one reason being role assimilation. Role assimilation is basically how we believe gender-stereotypical traits of our siblings, whether they are male or female. The other reason is because of birth-order, since first born children are found to be more competitive than the later born children. This is often because the first born is often more pressured and influenced by the parents, wanting to achieve more, and also a lot of times being under more strict rules.

Men who have an older brother or younger sister actually are more competitive, because of the counter-acting influences of the siblings. Women who have an older sister are more competitive, and this often leads to the older sibling to act more like a guy in terms of personality. Researchers think this is because women are naturally competitive with each other, so having older sisters increases competition in the household and with friends at school.

Jeanne Rose
Jeanne Rose lives in Cincinnati, Ohio, and has been a freelance writer since 2010. She took Allied Health in vocational school where she earned her CNA/PCA, and worked in a hospital for 3 years. Jeanne enjoys writing about science, health, politics, business, and other topics as well.
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