Development and psychometric evaluation of a self-management behaviours scale in rheumatoid arthritis patients (RA-SMBS)

Table 4 Convergent and discriminant validity, Internal consistency reliability and test–retest reliability

	Convergent and discriminant validity			Internal consistency reliability		test – retest reliability
Total scale/ Dimensions	Sted	CR (> 0.7)	AVE (> 0.5)	Cronbach’s alpha	The split-half Spearman-Brown coefficient	ICC	Pearson’s r
Item 1 ← F1	0.927	0.907	0.628	0.898	0.855	0.760**	0.767**
Item 2 ← F1	0.930
Item 4 ← F1	0.782
Item 3 ← F1	0.911
Item 5 ← F1	0.554
Item 6 ← F1	0.546
Item 15 ← F2	0.600	0.826	0.462	0.822	0.780	0.430*	0.511*
Item 16 ← F2	0.520
Item 17 ← F2	0.911
Item 18 ← F2	0.901
Item 20 ← F2	0.564
Item 21 ← F2	0.423
Item 13 ← F3	0.510	0.832	0.422	0.826	0.758	0.503*	0.676**
Item 28 ← F3	0.790
Item 29 ← F3	0.690
Item 30 ← F3	0.743
Item 31 ← F3	0.653
Item 33 ← F3	0.626
Item 35 ← F3	0.470
Item 7 ← F4	0.959	0.884	0.678	0.860	0.836	0.399*	0.574**
Item 8 ← F4	0.986
Item 9 ← F4	0.835
Item 10 ← F4	0.353
Total scale				0.908	0.788	0.628**	0.780**

ISSN: 1472-6955