Can I include criminality among those and thereby get the common part of criminality and fire.setting "out of the way"?
No. You already regress fire.setting on criminality since it is an indicator in the measurement model of criminality. In other words, the 'criminality' part is already regressed out.
Yves Rosseel http://lavaan.org ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.