supported by the National Natural Science Foundation of China(No.12171277,12271294).
In this paper,we consider the regular s-level fractional factorial split-plot(FFSP)designs when the subplot(SP)factors are more important.The idea of general minimum lower-order confounding criterion is applied to suc...
supported by the National Natural Science Foundation of China (Nos.12101545);by the natural science foundation of Inner Mongolia Autonomous Region (2022MS01007)。
Estimation of treatment effects is one of the crucial mainstays in economics and sociology studies.The problem will become more serious and complicated if the treatment variable is endogenous for the presence of unobs...