Methods: a survey with the self-designed questionnaire on sleep conditions and attitudes was conducted randomly to 1100 current college students from 10 universities in Wuhan City.

方法：采用自编的“大学生睡眠状况调查表”对武汉10所大学的在校生1100名进行睡眠情况抽样调查，并对结果进行分析。

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Based on confirmative survey, the current paper states the basic conditions of self-evaluation, expectation and social cognition of children in socialization.

本文以实证调查为基础，阐述了少年儿童在社会化过程中自我评价、期待以及社会认知等方面的基本现状。

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The index is based on a survey of 5000 households on their confidence in current and future business conditions, current and future employment and future household income.

FORBES: Is The Fed In a Crisis of Trust?

The survey is based on a representative sample of 5, 000 U.S. households and measures consumer sentiment on current economic conditions and the spending outlook for the next six months.

FORBES: Magazine Article