Table 3.

Spearman’s coefficient (r) of convergent construct validity

	SPADI	SPADI-pain subscale	SPADI-disability subscale	OSS	Fact-B	Fact-G	TOI	NSDQ	SF-36- physical function	SF-36- physical role	SF-36- bodily pain	SF-36- general health	SF-36-vitality	SF-36- social role	SF-36- emotional role	SF-36- mental health
SPADI	-
Pain subscale	0.931**	-
Disability subscale	0.970**	0.827**	-
OSS	−0.674**	−0.640**	−0.645**	-
Fact-B	−0.298*	−0.343**	−0.247**	0.213*	-
Fact-G	−0.208*	−0.235*	−0.179	0.114	0.871**	-
TOI	−0.404**	−0.448**	−0.340**	0.276**	0.923**	0.711**	-
NSDQ	0.432**	0.436**	0.396**	−0.469**	−0.255**	−0.191*	−0.317**	-
SF-36-physical function	−0.452**	−0.463**	−0.438**	0.364**	0.164	0.079	0.226*	−0.292**	-
SF-36-physical role	−0.392**	−0.405**	−0.364**	0.391**	0.175	0.182	0.236*	−0.285**	0.400**	-
SF-36- bodily pain	−0.385**	−0.355**	−0.377**	0.363**	0.139	0.057	0.191*	−0.087	0.310**	0.477**	-
SF-36- general health	−0.182*	−0.167	−0.202*	0.140	0.233*	0.200*	0.213*	−0.218*	0.195*	0.160	0.219*	-
SF-36-vitality	−0.146	−0.145	−0.150	0.101	0.104	0.025	0.140	−0.071	0.220*	0.213*	0.290**	0.370**	-
SF-36-social role	−0.200*	−0.181*	−0.200*	0.186*	0.126	0.117	0.174	−0.272**	0.247**	0.420**	0.439**	0.222*	0.503**	-
SF-36-emotional role	−0.315**	−0.312**	−0.301**	0.312**	0.119	0.099	0.161	−0.266**	0.220*	0.494**	0.348**	0.186*	0.394**	0.417**	-
SF-36- mental health	−0.146	−0.077	−0.177	0.051	0.049	0.054	0.102	−0.026	−0.033	0.147	0.182	0.216*	0.601**	0.511**	0.398**	-

** p < 0.01; * p < 0.05