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purposive of judgmental sampling
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purposive of judgmental sampling
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purposive of judgmental sampling
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研究人员在初步了解调查对象某些信息的基础上,依靠自己的判断,选择能够为研究问题提供最大信息量的研究对象的一种非概率抽样。又称目的抽样、立意抽样、专家抽样。
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