Table 3.

Hedges’ g for within-group pre-post, and controlled pre-post anxiety effect sizes in each study

Study	Pre-Post Effect Size			Pre-Post Control. Effect Size
	Hedges’ g (95% CI)	Z	P	Hedges’ g (95% CI)	Z	P
Ahmadi 2013 (13)	1.31 (0.71, 1.91)	4.29	0.00	1.44 (0.51, 2.37)	3.03	0.00
Baker 1979 (14)	0.32 (−0.02, 0.65)	1.87	0.06	0.53 (−0.06, 1.12)	1.76	0.08
Bernardi 2013 (15)	0.88 (0.44, 1.32)	3.89	0.00	1.27 (0.63, 1.91)	3.91	0.00
Bunk 1978 (16)	0.37 (−0.03, 0.76)	1.81	0.07	0.41 (−0.27, 1.08)	1.18	0.24
Cheema 2013 (17)	0.28 (−0.07, 0.63)	1.60	0.11	−0.04 (−0.67, 0.59)	−0.13	0.89
Cramer 2015 (18)	0.13 (−0.16, 0.42)	.89	0.37	0.41 (−0.12, 0.94)	1.51	0.13
Curtis 2011 (19)	0.23 (−0.09, 0.54)	1.41	0.16	-	-	-
Dunn 2009 (20)	0.75 (0.13, 1.37)	2.38	0.02	-	-	-
Holmer 2004 (21)	0.39 (−0.03, 0.82)	1.80	0.07	1.13 (0.35, 1.90)	2.85	0.00
Moadel 2007 (22)	0.20 (0.04, 0.37)	2.37	0.02	0.22 (−0.15, 0.58)	1.16	0.25
Pavan 1992 (23)	0.38 (−0.07, 0.84)	1.64	0.10	-	-	-
Ray 2001 (24)	−0.05 (−0.60, 0.49)	−.19	0.85	−0.10 (−1.23, 1.02)	−0.18	0.86
Ruggiero 2006 (25)	0.25 (−0.09, 0.59)	1.46	0.15	-	-	-
Sujatha 2014 (26)	1.04 (0.86, 1.21)	11.76	0.00	1.32 (1.04, 1.60)	9.24	0.00
Vizcaino 2013 (27)	0.50 (0.03, 0.98)	2.10	0.04	-	-	-
Yoo 2007 (29)	0.29 (0.05, 0.52)	2.35	0.02	0.16 (−0.26, 0.59)	0.75	0.46
Subtotal	0.44 (0.25, 0.63)	4.49	0.00	0.61 (0.25, 0.98)	3.32	0.00