TABLE 7.

Spearman’s rho correlations between total and individual GAD-7 items and the unipolar (high) and bipolar semantic similarity scales for worry.

GAD-7	M	SD	Item total correlation for GAD-7	Unipolar SSS Worry	Bipolar SSS Worry
Total	7.37	5.84	−	0.28***	0.50***
Item 1 (anxious, on edge)	1.13	0.97	0.88***	0.32***	0.50***
Item 2 (cannot control worrying)	1.09	1.03	0.90***	0.26***	0.47***
Item 3 (worrying about different things)	1.15	1.00	0.90***	0.27***	0.47***
Item 4 (trouble relaxing)	1.14	1.00	0.86***	0.21***	0.41***
Item 5 (restlessness, hard to sit still)	0.84	0.96	0.79***	0.16**	0.32***
Item 6 (annoyed, irritable)	1.05	0.94	0.78***	0.24***	0.42***
Item 7 (afraid)	0.97	0.99	0.85***	0.21***	0.41***

N = 411.

**Indicates p < 0.01; ***indicates p < 0.001.

M and SD are the mean and standard deviation, respectively.

GAD-7, Generalised Anxiety Disorder Scale-7; SSS, Semantic Similarity Scale; item numbers correspond to the order in Spitzer et al. (2006).