I've got two questions concerning the output of my CBCA Logit Estimation.
1) Do all or at least two of the attribute levels (in case of an attribute with 3 levels) have to have significant t-values? Sometimes, just one of my attribute levels has a significant t-value (+/- 1,96).
2) Why do the values of Chi² etc. change, if I integrate interaction into the Logit Analyse?
I hope you can help me!