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Big Family Can Reduce Risk of Divorce

By Senior News Editor
Reviewed by John M. Grohol, Psy.D. on August 13, 2013

Big Family Can Reduce Risk of DivorceDespite years of fighting and rivalry, learning to get along with your siblings seems to have some benefit after all as research suggests growing up in a large family may lower risk of divorce in adulthood.

In a nationwide study, Ohio State researchers discovered having siblings (up to about seven) can reduce the likelihood of divorce by two percent.

The practical difference between having no siblings and having one or two isn’t that much in terms of divorce, said sociologist Doug Downey, Ph.D., co-author of the study.

“But when you compare children from large families to those with only one child, there is a meaningful gap in the probability of divorce,” he said.

One of the biggest surprises of the study was that it wasn’t the difference between being an only child and having siblings that was significant.

“We expected that if you had any siblings at all, that would give you the experience with personal relationships that would help you in marriage,” said Donna Bobbitt-Zeher, Ph.D., co-author of the study.

“But we found that the real story appears to be how family dynamics change incrementally with the addition of each sibling.

“More siblings means more experience dealing with others, and that seems to provide additional help in dealing with a marriage relationship as an adult.”

Researchers used data from the General Social Survey, which involved interviews with about 57,000 adults from across the United States at 28 points between 1972 and 2012.

The results showed that each additional sibling up to about seven provided additional protection from divorce, Downey said. More siblings than that didn’t provide additional protection, although they did not hurt, either.

The good effect of siblings was seen among Americans of all generations studied.

“Siblings help protect against divorce among adults now just as much as they did 50 years ago,” Bobbitt-Zeher said.

The researchers took into account a wide variety of other factors that may have affected the results.

“One argument might be that it isn’t siblings that matter, but some other difference between large families and small families,” Downey said.

“It could have been that small families are more likely to have a single parent, or have some other issue that may hurt children in their future marriage relationship.”

To control for these variables, researchers analyzed the responses of both the participants they surveyed and their parents to ascertain if any factor(s) played a role in future divorces.

Influences including education, socioeconomic status, family structure, race, age at marriage, whether the respondents had children, gender role attitudes and religious affiliation, and others were evaluated.

“When we added in all of these controls, nothing took away the relationship we saw between siblings and later divorce,” Bobbitt-Zeher said. “None of these other factors explained it away.”

While the study itself can’t explain the protective effect of having siblings, Downey said there are good reasons for the findings.

“Growing up in a family with siblings, you develop a set of skills for negotiating both negative and positive interactions. You have to consider other people’s points of view, learn how to talk through problems. The more siblings you have, the more opportunities you have to practice those skills,” he said.

“That can be a good foundation for adult relationships, including marriage.”

The study results corresponded with early research by both Bobbitt-Zeher and Downey on the influence of growing up with or without siblings performed.

In 2004, Downey led a study that found kindergarten teachers rated students with siblings as having better social skills than only children.

In a study published this year, Downey and Bobbitt-Zeher found that teenagers without siblings didn’t seem to have a disadvantage when it came to social skills.

Most other studies of the effects of siblings also look at outcomes in school-aged children, and most show the positive results of smaller families, such as better grades among those with no or fewer siblings.

Downey said this new study is an attempt to both examine the effect of siblings later in life and to see how it impacts more major life events.

“Evaluations of social skills and grades aren’t trivial, but divorce is a more concrete, consequential event in a person’s life. This is the first study to look at how siblings affect such a consequential event in adulthood,” he said.

The results point to one troubling consequence of lower fertility and smaller family sizes in the United States and elsewhere, Downey said.

While much of the work about this demographic shift to smaller families shows the positive side of having fewer children, these findings show there are some negatives to consider as well.

At the same time, the researchers say these results shouldn’t lead parents of only children to worry too much.

“There are so many factors that are related to divorce, and the number of siblings you have is just one of them,” Bobbitt-Zeher said.

“There is a relationship between the number of siblings and divorce, but it is not something that is going to doom your marriage if you don’t have a brother or sister.”

Source: Ohio State University

Large happy family photo by shutterstock.

 

APA Reference
Nauert, R. (2013). Big Family Can Reduce Risk of Divorce. Psych Central. Retrieved on October 23, 2014, from http://psychcentral.com/news/2013/08/14/big-family-can-reduce-risk-of-divorce/58442.html

 

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