The GAD-2 Screening Questionnaire for Generalized Anxiety Disorder (GAD)
Generalized Anxiety Disorder (GAD) is a mental health condition that has the potential to affect quality of life and productivity. It is one of the most common mental disorders in the world. In 2017, about 284 million people were estimated to suffer from some type of anxiety disorder.
The first step in diagnosing GAD is to administer a screening questionnaire. The GAD-2 questionnaire has been proposed as an important first-step measure.
The GAD-2 is an easy-to-use measurement tool. It is designed to accurately detect the presence of anxiety and other related conditions. Moreover, its brevity makes it easier to use in primary care settings.
There are many clinical studies which have shown the validity and reliability of the GAD-2 scale. This means that it is an effective screening tool for GAD. Several international studies have also validated the results of this survey.
In addition, the GAD-2 and GAD-7 have excellent diagnostic capabilities. They can discriminate between patients with low scores and those with high ones. Moreover, they have good diagnostic sensitivity and internal consistency.
To evaluate the psychometric characteristics of the GAD-2, it was tested in a second measurement study. It was administered to a sample of 60 patients. These subjects were diagnosed with GAD according to the DSM-IV criteria. A panel of eight specialists evaluated the psychometric properties of each item.
In this study, the GAD-2 and GAD-7 were compared using the Hanley and McNeil method. Both measures showed high correlation with other diagnostic scales.