Table 2.

Fit statistics in the seven-item Self-Reported Adherence to Patient-Centered Physical Therapy Scale.

Item No.1	Measure	SE	Infit MnSq	Infit Zstd	Outfit MsSq	Outfit Zstd
Item 20	0.42	0.07	1.03	0.3	1.05	0.4
Item 38	0.24	0.07	1.14	1.0	1.08	0.6
Item 11	0.01	0.07	1.04	0.4	1.05	0.4
Item 9	−0.07	0.07	0.90	−0.7	0.87	−0.9
Item 5	−0.15	0.07	0.82	−1.3	0.86	−1.0
Item 34	−0.15	0.07	1.05	0.4	0.96	−0.2
Item 8	−0.30	0.07	1.07	0.5	0.95	−0.3

¹ Correspond with the 40-item Healthcare Providers Patient-Activation Scale [10]. Abbreviations: SE, standard error of measurement; MnSq, mean square; Zstd, standardized Z value.