During the course of cluster sample verification, systematic sampling and stratified sampling "s accuracy are prior to simple random sampling" s.

群样本检验中，系统抽样群样本检验和分层随机抽样群样本检验的效果优于简单随机抽样群样本检验。

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And with optimizing the measure condition, standard sample verification showed the measurement was quick and its precision, accuracy and recovery met the requirement.

经标准样品验证，该方法定量准确，分析速度快，精密度，回收率和准确度均符合要求。

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In addition, percentile requirements, sample counts, and verification point failures can all be tracked to validate the overall quality of your measurements.

另外，你可以验证需求、样本数量以及验证点，以确保质量的总体评价结果。

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The reliance on self-reporting weight, height, activity, and soda consumption in some studies rather than independent measuring and verification might confound their reliability, as might small sample sizes.

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