Two modelling variants, each with the same error message

[robert.wern...@gmail.com]

Dear All,

I was hoping Lavaan would provide brief MSEM validation for a model I've been working on (attached).  While not new to R-lmer, I am new to Lavaan.  Efforts to replicate the model have seen me produce two scripts, though both appear to generate the same error messages (attached).  I guess I would like to know which script is the better approach and what I am doing wrong?  The ERROR model syntax defines multiple groups, data suggest a single group has me really perplexed, since "stn_id" has been the shared level focus in all of my R analyses to date.  Hope you can help.

My thanks and best wishes,

Rob 

[Terrence Jorgensen]

The ERROR model syntax defines multiple groups, data suggest a single group has me really perplexed

This is lavaan 0.5-20

MSEM is only available beginning in the 0.6-* family.  You need to update your software.

Terrence D. Jorgensen

Assistant Professor, Methods and Statistics

Research Institute for Child Development and Education, the University of Amsterdam

http://www.uva.nl/profile/t.d.jorgensen

[robert.wern...@gmail.com]

Dear Terrence,

Thank you for your reply, I'm very grateful.  My version of Lavaan was a recent downloaded from CRAN, but I will try again - at least now I know what to look for.  

Best wishes, Rob