Contrast coding

This lecture develops the discussion of dummy/indicator coding to look at other forms of coding that can be used when entering categorical predictors into a linear model - especially when those categories represent experimental manipulations. We discuss contrast coding. Specifically, how to create contrasts and decide upon weights. Learn R alongside these lectures with the discovr package (https://www.discovr.rocks/discovr/) Suggested soundtrack: Primus: Too Many Puppies (   • Too many puppies - Primus (live)  )