Fig. 4
From: Response shift in health-related quality of life measures in the presence of formative indicators
Final fully invariant formative model (a) and final partially invariant Oort’s procedure model (b). Nonstandardized estimates. Note: oh = overall health item; ql = overall quality of life item; fc = mean score for the functioning scales; fa = fatigue subscale score; pa = pain subscale score. The green arrows indicate noninvariant parameters; suffix t1 and t2 refer to the two time points