Time frame: Baseline, post-intervention at 1 month, and follow-up at one month post-intervention.
The GAD-7 is a 7-item self-report measure used to assess the frequency and severity of anxiety symptoms in clients 11 and older. Aligned with the DSM-V-TR criteria for Generalized Anxiety Disorder (GAD) the results of this measure can support accurate diagnoses, establishment of treatment goals based on symptom severity, and guide effective clinical interventions.
Scores of 5, 10, and 15 are taken as the cut-off points for mild, moderate and severe anxiety, respectively. When used as a screening tool, further evaluation is recommended when the score is 10 or greater.
Using the threshold score of 10, the GAD-7 has a sensitivity of 89% and a specificity of 82% for GAD. It is moderately good at screening three other common anxiety disorders - panic disorder (sensitivity 74%, specificity 81%), social anxiety disorder (sensitivity 72%, specificity 80%) and post-traumatic stress disorder (sensitivity 66%, specificity 81%).