. 2016 May 11;43(2):344–354. doi: 10.1093/schbul/sbw056

Table 1.

Included JTC Studies, Comparisons, and Effect-Size Measures

Source	Comparison^a
	SD/HC	SD/SND	SND/HC	PD/HC	SD/PD	SD/PND	PD/PND	PND/HC
Andreou et al⁴⁹	g ^b
Andreou et al⁵⁰		g
Baskak et al⁵¹	g
Bentall et al²¹	g	g	g			g		g
Buck et al⁵²		r
Colbert et al⁵³	g	g	g
Conway et al⁵⁴				g
Corcoran et al²²	g	g	g	g	g	g	g	g
Dudley et al¹³	g					g		g
Dudley et al⁵⁵	g					g		g
Dudley et al⁵⁶		g
Fear and Healy⁵⁷				g			g	g
Fraser et al³⁷	g					g		g
Garety et al⁵⁸	g			g	g	g	g	g
Huq et al⁹	g					g		g
Jacobsen et al³⁶	g					g		g
Langdon et al⁵⁹	ρ	ρ
Langdon et al¹⁹		r
Lim et al⁶⁰		r
Lincoln et al⁶¹	g	g	g
Menon et al²⁵	g	g	g
Menon et al³⁹^,c		g
Menon et al²⁶	g
Moritz & Woodward⁶²	g	g	g			g		g
Mortimer et al⁶³		r
Peters & Garety³⁸^,c	g	g	g			g		g
Peters et al⁶⁴		g
Ross et al⁴⁰	g
So & Kwok⁶⁵	g
Startup et al⁶⁶	g
van der Gaag et al²⁰		r
Waller et al⁴¹		r
Warman et al⁶⁷	g
Warman et al⁶⁸		r
Wittorf et al⁶⁹		r						g
Total participants (n)	1131	834	385	152	86	409	123	558
Total studies (k)	21	20	7	4	2	10	3	12
Heterogeneity variance (I²)	58.2%	0.0%	47.3%	0.0%	0.0%	0.0%	15.7%	22.1%
Heterogeneity significance (P)	.000	.530	.077	.792	.951	.669	.306	.227

Note: JTC, jumping to conclusions.

^aSD = schizophrenia with current delusions, HC = healthy controls, SND = schizophrenia without current delusions, PD = other psychiatric illnesses with current delusions, PND = other psychiatric illnesses without current delusions.

^b g = Hedges’ g reported or calculated; r, ρ = correlation or Spearman’s correlation reported.

^cLongitudinal data.