# Chapter 6 Mediation Analysis with a Multicategorical Antecedent

“Historically, investigators interested in doing a mediation analysis with a multicategorical antecedents $$X$$ have resorted to some less optimal strategies than the one [Hayes] discuss[ed] in this chapter (p. 188).” Happily, the approach outlined in this chapter avoids such gaffs. Hayes’s procedure “does not require discarding any data; the entire sample is analyzed simultaneously. Furthermore, the multicategorical nature of $$X$$ is respected and retained (p. 189).”