I'm trying to find the right test for association for two likert scale, ordinal variables from a questionnaire I did:
"How often do you recycle" - (1) Almost Daily, (2)2-3 times a week, (3)Once a week, (4) Less than once a week, (5)I don't recycle
"Recycling can conserve the environment" - Ranges from (1)Strongly agree to (5)Strongly disagree, with (3)Neutral in the middle and a (6)I don't know option.
After graphing the data from my two variables together, it seems to that they don't have a monotonic relationship. From what I've searched, Kendall's tau c might suit my situation but I'm not sure if its a good idea since they don't have a monotonic relationship.
Edit: I'm aware that this seems like a duplicate from another similar question found here, but as I said in the below comments, Glen_b, who answered the question in the other post, mentioned that when one is looking for some general measure of non-monotonic association, you can look at nominal-nominal (such as Cramer's V), and nominal-ordinal association and he gave a reference to an article about that. But I want to know how does looking at nominal-nominal or nominal-ordinal association help me since I'm trying to do ordinal-ordinal association testing?