Marsh, H W Confirmatory Factor Analysis of Multitrait-Multimethod Self-concept Data: Between-group and Within-group Invariance Constraints. [electronic resource] - Multivariate behavioral research Jul 1993 - 313-449 p. digital Publication Type: Journal Article ISSN: 0027-3171 Standard No.: 10.1207/s15327906mbr2803_2 doi