cluster stratification sampling
... cluster continuous sampling 整群连续抽样 cluster stratification sampling 整群分层抽样 cluster random sampling method 整群随机抽样方法 ...
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cluster stratification sampling
整群分层抽样
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Methods the sampled students, which were taken out from the all middle schools in Sanming city by means of randomized stratification cluster sampling, were investigated with AAT (adaptability test).
方法按整群、分层、随机的原则，采用学习适应性测验(中学生版)对全市中学进行抽样调查。
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