"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."

He attributed the developmental setbacks of the children to several factors, including the stress of living with bickering

and potentially depressed parents, unstable living arrangements and being forced to divide time between parents and economic hardship from a drop in family income。

"Children may also experience some disturbing signs," he said. "Divorcing parents maybe cannot focus on caring about children. They may be prone to argue with children and I think that may influence children's development."

最新调查显示，离异家庭孩子的数学成绩和社交能力比同班同学要差，而且更容易受焦虑、压力、自卑所扰。

威斯康星大学麦迪逊分校研究人员金贤植称，离婚程序开始后，这些不利影响才会在孩子身上体现出来。

社会学博士生金贤植在声明中说：“人们通常认为离婚前两人就已经闹得不可开交了。”

“我原本以为在父母正式离婚程序开始前，不利影响就已经体现到孩子们身上了。但研究发现事实并非如此。”

此次研究共调查了3585名学生，考察了他们自幼儿园到五年级的成长过程中，家长离婚前、离婚中及离婚后他们的成长状况。这项研究发表在《美国社会学评论》期刊上。

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