[R] Post hoc comparisons for interaction effects linear mixed effects models (lm4)

[Katharina Voigt]

Hi,
I want to obtain post hoc comparisons for a model with a three-way interaction (FullModel5 <- lmer(CIVADmc ~ 1 + Factor1 * Factor2 * Factor3 + (1|ID) + (1 | Item), data=Exp3_WTP_diffi).
I tried: "summary(glht(FullModel4, linfct = mcp(Factor1*Factor2*Factor3 = "Tukey")), test = adjusted("holm”))” , but this does not work.
any suggestions?








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