The panel study involved a random sample of 895 households from over 50 000 enrolled in a cash-for-work programme between September and December 2007 and 921 similar control households.

我们从2007年9月和12月登记在现金薪酬项目的50,000多个家庭中抽取了895个家庭作为随机样本，还选择了921个类似的对照家庭，然后对它们开展了小组研究。

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She examined information from the United States Panel of Study of Income Dynamics.

VOA: special.2009.06.09

The president spoke at a meeting of a White House advisory panel set up to study the problems facing the middle class and propose solutions.

VOA: standard.2010.01.25

In 2008 another economist Anderson Stanciole analyzed longitudinal data from the U.S. Panel Study of Income Dynamics.

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Now, according to the latest wave of the British Election Panel study, less than one in ten take that view.

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Seventy percent of respondents said they favored forming an independent panel to study the government response to the storm.

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