作者: Pedro Sánchez-Algarra , M. Teresa Anguera-Argilaga
关键词: Categorical variable 、 Statistics 、 Multidimensional analysis 、 Econometrics 、 Log-linear analysis 、 Program evaluation 、 Variable (computer science) 、 Log-linear model 、 Mathematics 、 Hierarchy (mathematics)
摘要: The collapsibility theorem describes both the circumstances in which effects of hierarchical models change when additional variables are introduced, as exclusion certain and analysis specific marginal tables may lead to different conclusions.