Mahdi Razafsha, Hura Behforuzi, Hassan Azari, Zhiqun Zhang, Kevin K Wang, Firas H Kobeissy, Mark S Gold
Qualitative versus quantitative methods in psychiatric research
Methods in molecular biology (Clifton, N.J.)
joint distribution two variables could influenced outcome conditioning variable paper propose flexible waldtype statistic test influence test based conditioned multivariate kendalls tau nonparametric estimator asymptotic properties test statistic established different null hypotheses tested conditional independence testing constant conditional dependence two simulation studies presented first shows estimator proposed bandwidth selection procedure perform well second presents different bivariate multivariate models check size power test runs comparisons previous proposals appropriate results support contention test accurate even complex situations computational cost low empirical application study dependence pillars european regional competitiveness conditioned quality regional institutions find interesting results weaker links innovation higher education regions lower institutional quality online version contains supplementary material available 101007s11749022008061