categorical covariates

  1. P

    Need help with categorical covariates

    Hi all, I need help figuring out what to in SPSS to analyze the effects of covariates. I used conditional process analysis (PROCESS macro model 2) to determine whether the relationship between my predictor variable and outcome variable was moderated by two different moderators (it was). I have...
  2. M

    ANCOVA coding of categorical covariates

    Hello all, I am running an ANCOVA in R (Anova function) to assess the results of a randomized experimental study. I have a 2x2 full factorial model that will control for three continuous and two categorical covariates (ethnicity and gender). The gender covariate is unbalanced with a breakdown...