Table 5.

Percent change and effect size of most commonly reported outcomes in quantitative studies.

Outcome measures	First author	Year	Pre-AAI vs. Post-AAI			Post-AAI vs. post-control
			p	Mean % change	d	Control	p	d
DEPRESSION
BDI	Kemp	2013	< 0.001	−53	1.31	Waitlist	< 0.01	—
	Nevins	2013	—	−44	—
	Woolleya	2004	ns	1b, −47c	0.01b, 0.44c	Waitlist	—	0.01b, 0.38c
CDI	Kemp	2013	< 0.001	−72	1.97	Waitlist	< 0.01	—
SCESD	Hamama	2011	0.06	−19	0.47
TSCC	Dietz	2012	< 0.001	−46	0.92	No animal	< 0.001	0.53
	Kemp	2013	< 0.001	−69	2.91	Waitlist	< 0.01	—
PTSD SYMPTOMS
CRIES-13	McCullougha	2011	< 0.05	−13	0.34
PCL-C	Hamama	2011	< 0.05	−22	0.70
	Nevins	2013	—	−34	—
TSSC	Dietz	2012	< 0.001	−39	0.86	No animal	ns	0.53
	Kemp	2013	< 0.001	−80	3.77	Waitlist	< 0.01	—
ANXIETY
BAI	Kemp	2013	< 0.001	−65	2.09	Waitlist	< 0.01	—
STAI-S	Woolley	2004	ns	−21	0.61	Waitlist	—	0.51
TSSC	Dietz	2012	< 0.001	−43	0.80	No animal	< 0.001	0.64
	Kemp	2013	< 0.001	−58	2.63	Waitlist	< 0.01	—

–, not reported or not enough information to calculate; d, Cohen's d effect size; ns, not significant.

^aThesis.

^bPost-AAI is the full BDI before the last session.

^cPost-AAI is the brief BDI after the last session.