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. Author manuscript; available in PMC: 2021 Feb 2.
Published in final edited form as: Struct Equ Modeling. 2020 Aug 3;27(6):975–984. doi: 10.1080/10705511.2020.1777133
PROC CAUSALMED DATA=atlas pALL ALPHA=.05;
 CLASS ngroup/DESCENDING;
 MODEL ncstrtrn = ngroup | ncknwas;
 MEDIATOR ncknwas = ngroup;
 EVALUATE “CDE@0” ncknwas=0;
 BOOTSTRAP CI (ALL) NBOOT = 1000;
quit;