Jon Heron posted on Friday, March 14, 2014 - 10:17 am
this isn't strictly Mplus related but i'm at the end of my tether and would really appreciate any insight you may have.
I have in mind a 3-class mixture model, e.g. derived from a single tri-modal Y.
Whilst entropy would be a measure of the separation of those three classes, in theory one could also derive 3 additional measures of entropy, each from a different pairwise comparison, by working with the appropriate assignment probabilities.
Have you seen this done anywhere? I'm grappling with currently unanswerable questions regarding whether I discard the probabilities for the third class, perhaps rescale the two remaining probabilities so they sum to one within person and whether i also drop cases for which the modal class is neither of the two of interest.