I am attempting to see if there is a relationship between an IV (which is ordinal ranked -ranging from 1-9) and multiple DVs which are which are also ordinal. What would be the most appropriate analysis to run? I was thinking Kruskal Wallis H test but now I'm second guessing myself. I know if I'm looking for causal analysis I need to consider regression. My sample size is just over 400. Any recommendations greatly appreciated!