您要查找的是不是：
- Heckman, J.J. (1979), Sample selection bias as a specification error, Econometrica, 47, 153-161. 样本选择偏差，一看就知道是个很重要的问题嘛，排名第五，不算亏待。
- sample selection bias 样本选择偏差
- One problem was what statisticians call selection bias. 一个问题被统计学家称作选择偏见。
- A new method is proposed for sample selection in large data set. 提出了一种大规模数据集的训练样本选择方法。
- "New studies, however, have shown substantial unadjusted selection bias in previous cohort studies. 不过，新的研究显示，在这些世代研究中有明显的选样误差。
- Who attacks whom?why they all have selective BIAS,neglecting truth? 谁伤害了谁?为什么他们都选择性的忽视事实?
- The eligibility criteria determine the study population but are a potential source of selection bias that can affect generalizability of the results. 这些研究需要提供生存优势的足够水平的证据，或者用于改变临床实践的任何治疗的临床受益。
- The findings are subject to selection bias and confounding, which will have been minimised but not eliminated by propensity score matching. 该发现是受选择偏倚和混杂设计的影响，这些可以通过倾向评分匹配最大限度的降低但不能消除。
- Sample selection error -improper sample design or sampling procedure execution. 白天在商场选取女性应答者可能就把职业女性排除在外。
- But who attack whom？ Why they all habe selective BIAS, neglecting truth? 谁在攻击谁？为什么他们都选择性的忽视事实？
- But who attacks shom?why they all have selective BIAS,neglecting truth? 谁在攻击谁?为什么他们都选择性地忽视事实?
- The method of sample selection should be recorded. The sample should include all significant types of transaction. 应当书面记录挑选样本的方法，样本应当包括所有重要的交易类型。
- But who atacks whom? Why they all have selective BIAS, neglecting truth? 谁在攻击谁？为什么他们都选择性地忽视事实？
- The test batch sizes laid down in the standards apply as regards sample selection. 对于取样的选择，试验批次尺寸在运用的标准中列出。
- But who attacks whom? Why they all have selective BIAS, neglecting truth? 谁在攻击谁？为什么他们都选择性的忽视事实？
- But who attacks whom? Why they all have selective bias , neglecting truth? 谁在攻击谁？为什么他们都选择性的忽略事实？
- But who attacks whom?Why they al have selective BIAS,neglecting truth? 谁在攻击谁？为什么他们都在选择性的忽视事实？
- THE REGIONAL CLASSIFICATION METHOD OF SAMPLE SELECTION FOR MECHANISM'S STUDY OF INVESTMENT AND FINANCING OF PUBLIC HEALTH IN RURAL AREAS. 农村公共卫生投融资机制研究样本抽取的区域分类方法。
- But who attacks whom?Why they all have selective BIAS,neglecting truth? 谁在攻击谁?为什么他们都选择性的忽视事实?
- To understand the rules, we should pay more attention to time scale and sample selection, and researches on macro regularity based on micro statistics. 对旅游发展规律的认识要注意时间尺度和样本的选取，由微观态的统计上升为对宏观规律的探究。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
