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Children of divorced parents often fall behind their classmates in math and social skills and are more likely to suffer anxiety, stress and low self-esteem, according to a new study.

Researcher Hyun Sik Kim, of the University of Wisconsin-Madison, said the study showed that the detrimental effects on the children do not start until after the parents begin divorce proceedings.

"People tend to think that couples go through intense marital conflict before the divorce," Kim, a PhD candidate in sociology, said in a statement.

"My original prediction was that children of divorce would experience negative impacts even before formal divorce processes began. But my study finds that this is not the case."

The findings, published in the American Sociological Review, are based on data that tracked the development of 3,585 students from kindergarten through fifth grade to examine the impact before, during and after the divorce.

Kim compared the progress of children whose parents were going through a divorce with youngsters from stable families. He found that developmental problems continued after the divorce.

"This study reveals that these negative impacts do not worsen in the post-divorce stage, although there is no sign that children of divorce catch up with their counterparts, either," Kim said.

He added that math studies were particularly sensitive to impact of divorce.

"Reading is not that cumulative. But with math, you must understand previous things to develop. For example, if I do not understand that one plus one is two, then I cannot understand multiplication."

（中國日報網英語點津 Helen 編輯）

About the broadcaster:

Nelly Min is an editor at China Daily with more than 10 years of experience as a newspaper editor and photographer. She has worked at major newspapers in the U.S., including the Los Angeles Times and the Detroit Free Press. She is also fluent in Korean.