Testing the psychometric properties of a Chinese version of Dyadic Relationship Scale for families of people with hypertension in China

Table 2 The item analysis and weighted kappa statistics of the DRS-C-patient and DRS-C-caregiver (N = 132)

Item no	DRS-C-patient		DRS-C-caregiver
Item no	Corrected item-to-total correlation	Cronbach’s alpha with item deletion	Corrected item-to-total correlation	Cronbach’s alpha with item deletion
1	0.52	0.80	0.57	0.79
2	0.45	0.80	0.53	0.80
3	0.62	0.79	0.70	0.77
4	0.65	0.78	0.61	0.79
5	0.58	0.79	0.61	0.79
6	0.40	0.81	0.35	0.81
7	0.40	0.81	0.32	0.82
8	0.51	0.80	0.46	0.80
9	0.28	0.82	0.68	0.78
10	0.55	0.80	0.05	0.83
11	–	–	0.31	0.81

ISSN: 2050-7283