. 2020 Nov 27;72(12):1780–1789. doi: 10.1002/acr.24094

Table 2.

Model assumptions of the PROMIS pediatric item banks for children with juvenile idiopathic arthritis (n = 155)*

Item bank	Unidimensionality				Local independence, no. (%) ^†	Monotonicity, H scale
Item bank	CFI score	TLI score	SRMR	RMSEA	Local independence, no. (%) ^†	Monotonicity, H scale
Anger scale	0.995	0.989	0.032	0.053	0 (0)	0.726
Anxiety	0.983	0.980	0.077	0.103	1 (1.3)	0.662
Depressive symptoms	0.996	0.995	0.035	0.000	0 (0)	0.733
Fatigue	0.991	0.990	0.042	0.055	0 (0)	0.743
Mobility (n = 156)	0.992	0.991	0.072	0.000	6 (2.4)	0.588
Pain interference	0.987	0.985	0.044	0.059	0 (0)	0.682
Peer relationships	0.954	0.947	0.080	0.080	4 (3.8)	0.508
Upper extremity (n = 157)	0.991	0.990	0.073	0.021	5 (1.2)	0.573

PROMIS = Patient‐Reported Outcomes Measurement Information System; CFI = comparative fit index; TLI = Tucker‐Lewis index; SRMR = standardized root mean square residual; RMSEA = root mean square error of approximation.

^{^†}

Locally dependent item pairs.