This suggestion runs counter to the growing emphasis on large samples built on secondary data, data which is assumed somehow to be more valid and generalizable than carefully col-lected primary data.

这个建议与现在不断强调的，根据二手的数据建立的样本相反，这些二手数据都被假定为比精心搜集的第一手数据要更有效，更具概括性。

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