Test Anxiety is a widespread psychological phenomenon. With prevalence rates of 20-40 percent of university students, it impedes adaptive functioning and life quality. Many available treatments for Test Anxiety involve the intervention of clinicians and usually a few months are required before symptom reduction is reported. The present randomized controlled trial examined a simple behavioral intervention-the use of breathing tools-as an exclusive therapy for Test Anxiety. Specifically, the efficacy of a biofeedback respiratory practice device was examined. 34 students were assigned to 3 treatment groups during their exam period: Biofeedback device group, self-directed breathing exercise group, and psychoeducation group. Self-report measures of Test Anxiety were collected pre- and post-intervention. Participants also reported additional exploratory measures such as depression and anxiety, quality of life, and their perceived adaptive functioning post-intervention. The results reveal that only participants from the biofeedback device group reported a significant reduction in Test Anxiety symptoms (p's < 0.05). Participants from the biofeedback device group also reported a decrease in depression and anxiety symptoms and an increase in psychological wellbeing (p's < 0.05), a subscale of the quality of life questionnaire. Findings support the notion that using biofeedback respiratory devices may reduce students' Test Anxiety symptoms. Indications for further research are discussed.