A Randomized Controlled Trial of Emotion Regulation Therapy for Generalized Anxiety Disorder With and Without Co-Occurring Depression

Patients receiving ERT demonstrated statistically and clinically significant improvement in GAD severity compared to modified attention control, with large effect size on the time x group interaction,

Effect: improvement; Hedge's g = .83

ERT produced statistically and clinically significant reductions in depression severity compared to modified attention control, with large effect sizes on MDD CSR and BDI-II, and 63% of the comorbid M

Effect: improvement; Hedge's g = .82

ERT produced statistically significant reductions in functional disability and improvements in quality of life compared to modified attention control, with effects maintained at 9-month follow-up.

Effect: improvement; Hedge's g = .87

ERT produced statistically significant reductions in mean clinician severity of additional comorbid diagnoses beyond GAD compared to modified attention control, with effects maintained at 9-month foll

Effect: improvement; Hedge's g = .72

All four hypothesized mechanism variables (trait mindfulness, emotion dysregulation, cognitive reappraisal, decentering) showed significant time x group interactions favoring ERT over MAC, and all fou

Effect: improvement; Hedge's g range .54 to 1.00