“snowball sampling”的概念、定义、翻译、参考文献-科学参考

单词	snowball sampling
释义	snowball sampling Encyclopedia 理学【基本概念】释 snowball sampling滚雪球式抽样利用若干原始样本提供的信息来获取更多样本，并且以相同方式不断增加样本，直到样本数量达到研究要求的抽样方法。又称链式抽样、推荐抽样。
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