Effects of a Transdiagnostic Group Treatment for Anxiety on Secondary Depression

Researchers have recently explored transdiagnostic anxiety treatments based on models of anxiety emphasizing a single common pathway across diagnostic categories. Results from a previous study (Norton and Hope, in press) indicated that a transdiagnostic approach was effective for both targeted and untargeted anxiety disorders. Consistent with the tripartite model, the transdiagnostic treatment should also influence symptoms of a broader pathology such as negative affectivity. This follow-up to Norton and Hope found significant decreases in depressed mood for clients undergoing transdiagnostic treatment for anxiety when compared to wait-list control participants. Although not statistically established, severity of depressive diagnoses seemed to generally decrease across treatment, whereas no change in severity occurred for those not receiving treatment