Table 4.

Data for the meta‐analysis on the efficacy of psychological treatments for obsessive‐compulsive disorder. Design of study: 1, quasi‐experimental; 2, experimental

Study	Year	Design	n iT	n iC	g i	${\mathit{v}}_{\mathit{i}}^{\mathbf{2}}$
1	1998	1	10	8	1.425	0.2814
2	2003	2	22	23	1.068	0.1016
3	1993	2	29	32	0.924	0.0727
4	1993	2	29	32	0.909	0.0725
5	2005	1	23	11	0.281	0.1355
6	2005	2	21	20	1.646	0.1307
7	1997	2	15	14	1.007	0.1556
8	2002	2	55	66	0.996	0.0374
9	2002	2	55	66	0.731	0.0355
10	1998	2	11	10	1.882	0.2752
11	2000	2	13	16	1.082	0.1596
12	1997	2	9	9	2.326	0.3725
13	1994	2	6	6	−0.229	0.3355
14	1980	2	10	10	0.191	0.2009
15	2001	2	18	33	0.980	0.0953
16	2001	2	16	33	1.620	0.1196
17	2005	2	10	8	2.997	0.4745
18	1999	1	6	6	0.860	0.3642
19	2006	2	10	10	1.494	0.2558
20	2003	1	11	15	0.597	0.1644
21	1998	2	19	16	0.674	0.1216
22	1998	2	19	16	0.490	0.1186
23	2004	2	6	9	3.780	0.7541
24	2004	2	10	9	1.590	0.2776