repeatedly assessing the children's cognitive skills, language abilities, and social behaviors. 反复地评估这些儿童的认知水平、语言能力和社交行为。

Dozens of papers have been published about what they found. 其结果已经发表为若干篇论文。

In 2006, the researchers released a report summarizing their findings, which concluded that 2006年发表的一篇成果汇总报告说：

"children who were cared for exclusively by their mothers did not develop differently than those who were also cared for by others." “由母亲专职照料的孩子和那些由母亲和其他人同时照料的孩子在个体发展上并无不同”。

They found no gap in cognitive skills, language competence, social competence, ability to build and maintain relationships, or in the quality of the mother-child bond. 他们在认知水平、语言表达、社交能力、建立和维护人际关系以及母子感情方面都没有什么差距。

Parental behavioral factors — including fathers who are responsive and positive, mothers who favor "self-directed child behavior," 父母的行为因素，包括责任心强、积极乐观的父亲，主张“孩子自主行动”的母亲，

and parents with emotional intimacy in their marriages — influence a child's development two to three times more than any form of child care. 以及较高的父母婚姻感情亲密度，这些因素对孩子的影响比任何形式的看护照料要多出2~3倍。

One of the findings is worth reading slowly, maybe even twice: 其中一项发现更值得细究：

"Exclusive maternal care was not related to better or worse outcomes for children. “母亲的照料与孩子的发展并无关联，

There is, thus, no reason for mothers to feel as though they are harming their children if they decide to work." 因此，母亲们没有理由认为自己选择工作就会对孩子不利”。