Only child
A person with no siblings, studied for stereotypes and developmental outcomes.
Wikipedia / Wikimedia Commons
An only child is a person with no siblings, by birth or adoption. Throughout history, only-children were relatively uncommon, but from around the middle of the 20th century, birth rates and average family sizes fell sharply due to factors including concerns about human overpopulation, more women having their first child later in life, and government policies such as China's one-child policy. Only-children have been the subject of stereotypes and scientific research examining their personality, intelligence, and social skills.
- definition
- A person with no siblings, by birth or adoption
- historical prevalence
- Relatively uncommon throughout history; increased during the Great Depression in the U.S.
- notable policy
- China's one-child policy (1980–2015) restricted most parents to one child
- stereotype
- Often stereotyped as 'spoiled, selfish, and bratty' in Western countries
- research finding
- Most studies find no significant personality differences from children with siblings
Lore & Background
Only-children have been the subject of both negative stereotypes and extensive research. In Western countries, they are often stereotyped as 'spoiled brats,' a view traceable to G. Stanley Hall, who called their situation 'a disease in itself.' Social psychologist Susan Newman states that hundreds of studies show only-children are no different from their peers, though some research involving teacher ratings has found only-children scored lower in self-control and interpersonal skills in early grades, with deficits possibly persisting until fifth grade. In China, perceived behavioral problems were labeled 'Little Emperor Syndrome,' but recent studies do not support claims of significant personality differences.
Reader's Guide
The significance of only-children lies in their role as a demographic group shaped by historical shifts in family size and government policies, and as a focus of enduring stereotypes and scientific inquiry. A 1987 quantitative review of 141 studies found no evidence of greater maladjustment, but did find only-children possessed higher achievement motivation, attributed to greater parental resources and expectations. Research also shows only-children, children with one sibling, and first-borns score higher on verbal ability tests than later-borns. The Resource Dilution Model suggests that because parental resources are finite, children with many siblings receive fewer resources, while the Confluence Model notes benefits from tutoring younger siblings. Overall, most findings do not support negative views, though some differences exist. The legacy of only-children includes ongoing debate about 'only child syndrome,' for which there is very little evidence, and their representation in popular media as less cooperative or more pressured.
Did You Know?
- The proportion of families in the United States with only-children increased during the Great Depression but fell during the Post–World War II baby boom.
- South Korea's population control policies promoting small families began in the 1960s, not immediately after the 1953 armistice, leading to more only-children.
- A 1987 meta-analysis by Falbo and Polit of 115 studies found only-children possessed higher achievement motivation than children with siblings.
- Research by Cameron et al. (2011) controlled for endogeneity in studying only-children.
Frequently Asked Questions
What is an only child?
An only child is someone who has no brothers or sisters, whether that means they were born without siblings or were adopted into a family where no other children exist. The term covers both biological and adoptive situations.
Why did only children become more common in the 20th century?
Birth rates and family sizes dropped sharply from the mid-1900s onward, driven by growing concerns about overpopulation, women choosing to have their first child later, and government policies like China's one-child rule. The trend was also visible during the U.S. Great Depression, when economic hardship led families to have fewer kids.
What stereotypes are commonly attached to only children?
In Western cultures, only children are often labeled as spoiled, selfish, or bratty. These characterizations are largely cultural assumptions rather than evidence-based conclusions.
Do studies actually show that only children are different from kids with siblings?
Most research examining personality, intelligence, and social skills finds no meaningful differences between only children and those who grew up with brothers or sisters. The popular stereotypes don't hold up under systematic study.
What was China's one-child policy and how did it affect only-children?
From 1980 to 2015, China restricted most families to a single child, making the only-child status the norm for an entire generation. The policy was eventually lifted, but its legacy shaped family structures and public attitudes toward single-child households for decades.
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