“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。
随便看	second critical magnetic field second cultivated machinery second curvature second demographic transition second derivative second derivative test second derivative test discriminant second development second difference second differential second differential parameter second differentiator second distance second dual second dual module second dual space second economics adjustment of China second eigenfunction second electron emission Second Emperor of Qin Dynasty Second Empire of Brazil second factor second fall-line second Fermat point second field free region

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