sampling biases是什么意思_sampling biases中文

sampling biases中文什么意思

《英文msh词典》Sampling Biases
[入口词] Sampling Biases
[主题词] Selection Bias
[英文释义] The introduction of error due to systematic differences in the characteristics between those selected and those not selected for a given study. In sampling bias,error is the result of failure to ensure that all members of the reference population have a known chance of selection in the sample.

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process-dissociation procedure; pure measurement; sampling bias; memory; consciousness
过程分离程序纯净测量取样偏差记忆意识
small sample bias
小样本偏误
to avoid sampling bias, they restricted their analysis to one group of animals ? the bivalve molluscs ? that fossilise well
为了防止取样的偏颇，他们将分析的对象限制在一类化石记录保存完备动物??双壳类软体动物。
this made a small-scale sampling to develop a database of school teacher's information literacy through, used regression analysis to determine the weight distribution of evaluation indicators by means of minimum sampling bias, and set up a set of quantitative indicators for the evaluation of teacher's information literacy
摘要本文认为通过小范围的教师样本可获取关于教师信息素养量化评价指标和总的教师信息素养数据，运用回归分析法最小化样本偏差可获取各评价指标对应的合理的权重分布，从而建立一个适应各学校实际情况的教师信息素养量化评价指标体系。

sampling biases中文什么意思