The reliability, validity and factorial structure of the Swahili version of the 7-item generalized anxiety disorder scale (GAD-7) among adults living with HIV from Kilifi, Kenya

Table 3 Item correlation, inter-item covariance and item alphas

Item	Item–test correlation	Item–rest correlation	Average inter-item covariance	Alpha^a
GAD1	0.78	0.68	0.37	0.78
GAD2	0.76	0.65	0.38	0.79
GAD3	0.78	0.68	0.38	0.78
GAD4	0.65	0.51	0.42	0.81
GAD5	0.60	0.44	0.44	0.82
GAD6	0.61	0.46	0.43	0.82
GAD7	0.70	0.58	0.40	0.80

ISSN: 1744-859X