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Cross-Sectional_Study中文翻译为：横断面研究。 横断面研究 (cross-sectionalstudy)是在某一特定时间对某一定范围内的人群，以个人为单位收集和描述人群的特征以及疾病或健康状况。 横断面｜JBI质量评价工具 | 澳大利亚 JBI 循证卫生保健中心（2016）对分析性横断面研究（analytical cross-sectional study）的质量评价工具包含8个评价项目（下表）。 关于经济学，计量经济学和金融你的四种大概指 横截面数据 (cross-sectional data),时间序列 (time series), 面板数据 (panel data)和 pooling data。横截面是在一个固定时间点对不同个体进行观测，时间序列是同一个体在多个时点重复观测。面板数据和pooling data都是对多个个体在多个时间点进行观测，面板是同一.
什么是cross-sectional_study？Cross-sectional study横断面研究是一种在某一特定时间点对某一人群进行调查研究的方法。它是流行病学和医学研究中的常用方法，主要用于描述疾病或特定状况在某个时刻的分布状况。横断 重复截面数据如何用倍差估计量估计？ 马克W沃森的计量经济学第三版，中文版第381页讲repeated cross sectional data使用倍差估计量（difference in … 显示全部 关注者 1 被浏览 101 formulaic alphas 里的解释是cross sectional rank, 具体计算是怎样的？在这本书p.181里，Finding Alphas - A Quantitative Approach to Building Trading Strategies 应该是WorldQuant的人写的，可以仔细读一下 Instruments 应该是交易标的，如不同的股票，期货合约， 货币对。 这些Alpha式子应该都是应用在资产组合上，给出各种标的.
没有整理Cross-Sectional, 一直觉得Cross-Sectional就是除去Follow-up以后的上面类型的研究 在Cousera里有免费的北卡的流病的课, 具体介绍了各种类型的流病研究: UNC Epidemiology 北卡的ERIC Notebook也提供了比较详细的名词解释如下 Cohort Studies (Second Edition No. 6) Case Control Studies (Second Edition No. 5) Cross Sectional Studies.
cross-sectional variation in unconditional expected returns是指什么呢？ 我的理解是，截面差异，非条件期望收益的截面差异 回复 举报 点赞 0 0 cross-sectional test 的核心在于探索在特定条件下，一个变量 x 对另一个变量 y 影响的变化趋势。 这意味着 x 对 y 的影响可能是增强的，也可能是减弱的，但关键的是，这种影响的改变不意味着 x 对 y 的主效应不存在。 このページは、知乎の質問「双盲試験とは何か？」に関連する回答や議論を提供しています。
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