Structural equation modeling of multitrait-multimethod data: different models for different types of methods
Psychological Methods (2008) - Comment
pubmed: 18778153  doi: 10.1037/a0013219  issn: 1939-1463  issn: 1082-989x 

Michael Eid, Fridtjof W. Nussbeck, Christian Geiser, David A. Cole, Mario Gollwitzer, Tanja Lischetzke