400 items means 400*399/2 = 79,800 parameters to estimate. We'd need n=200,000 for that probably ;)
@EikoFried I have a big dataset (n=4600) with all >400 MMPI items. Would that be useful for network modeling for you?
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Well, it's a start. You could use hierarchical clustering/etc to reduce the items to a more manageable number first.
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I could do all sorts of things!
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But if it were my project, I'd do parallel analysis & exploratory graph analysis and see how many item communities to extract.
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That N would allow for co-occurrence network, to see how often high scores in one var occur w high scores in another https://osf.io/8mj84/
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W "co-occurrence netw" you mean visualizing cor matrix as network (i.e. no model)? I meant regularized part cor net https://arxiv.org/abs/1607.01367
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I developed that approach to link network analyses with intra-individual methods. Makes sense e.g., for mixture distributions & co-morbidity
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Interesting, will check. But there are many network models for intra-ind network data, e.g. R-packages mlVAR graphicalVAR gimme
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