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Table 4 Item statistics GAD-7 generalized anxiety disorder

From: An arabic translation, reliability, and validation of Patient Health Questionnaire in a Saudi sample

GAD-7 items Mean Std. deviation Corrected item-total correlation Cronbach’s alpha if item deleted Change in Cronbach’s alpha if item deleted
Feeling nervous, anxious, on edge, or worrying a lot about different things 1.31 0.486 0.423 0.747 −0.016
Feeling restless so that it is hard to sit still 0.49 0.646 0.483 0.733 −0.030
Getting tired very easily 0.91 0.720 0.595 0.707 −0.056
Muscle tension, aches, or soreness 0.55 0.674 0.441 0.742 −0.021
Trouble falling asleep or staying asleep 0.92 0.743 0.410 0.751 −0.012
Trouble concentrating on things, such as reading a book or watching TV 0.71 0.714 0.529 0.723 −0.040
Becoming easily annoyed or irritable 1.06 0.662 0.505 0.729 −0.034
Total 5.95 3.004 0.317 0.763 0.000