Construct validity of the Mini-BESTest in individuals with chronic pain in specialized pain care

Table 3 Goodness-of-Fit indices for confirmatory factor analysis models for Mini-BESTest ^a

Model	COV	x ²	dƒ	p-value	RMSEA (90% CI)	CFI	TLI	SRMR
1 A:1 factor (14 items)		135.2	77	≤ 0.001	0.07 (0.05–0.08)	0.992	0.993	0.08
1B: 1factor^b (14 items)	(4,5); (7,9)	82.8	75	0.25	0.02 (0.00–0.05)	0.999	0.999	0.07
2: 4 factor (APA, RPC, SO, DG)^c		51.2	71	0.96	0.00 (0.00–0.00)	1.003	1.000	0.06
5: 4 factor (APA, PR, SO, SG)^d		39.7	59	0.97	0.00 (0.00–0.00)	1.003	1.000	0.05

^a Second-order models 3 and 4 did not reach convergence. COV = covariate according to the modification indices between items. RMSEA = root mean square error of approximation; CFI = comparative fit index; TLI = Tucker-Lewis index; SRMR = standardized root-mean-square residual. ^b Modification with COV of model 1 A. ^c APA = anticipatory postural adjustments; RPC = reactive postural control; SO = sensory orientation; DG = dynamic gait. ^d PR = postural response; SG = stability in gait

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