Table 1.

Demographics and pretest scores for biofeedback group and control group.

Variable	Biofeedback group (n = 30)		Control group (n = 30)		P
	M	SD	M	SD
Age	19.30	0.70	19.23	0.50	ns
GPA	3.46	0.20	3.45	0.25	ns
Stress	13.47	4.26	13.27	4.32	ns
Anxiety	18.60	10.25	16.40	8.34	ns

ns: not significant.