Table 3. Pre-post ($\stackrel{-}{\stackrel{-}{\mathit{X}}}=25.12\mathit{d}\mathit{a}\mathit{y}\mathit{s})$ change (Paired sample t-tests).

Outcome Measure	Baseline Mean (SD)	Post Mean (SD)	95% CI	t	p-value	Within group Effect Size (Cohen's d)
	n = 38	n = 38
Brief Symptom Inventory
Total	46.21 (32.86)	41.66 (33.80)	[-0.33, 9.43]	1.89	0.067	0.14
Psychoticism	5.34 (4.63)	4.34 (4.23)	[0.06, 1.94]	2.16	0.038	0.22
Somatization	4.95 (4.40)	4.29 (5.40)	[-0.54, 1.85]	1.11	0.273	0.13
Depression	6.47 (5.59)	4.29 (4.57)	[0.97, 3.39]	3.66	0.001	0.42
Hostility	2.42 (2.41)	1.97 (2.58)	[-0.1, 0.99]	1.67	0.104	0.18
Phobic Anxiety	3.90 (4.11)	2.97 (3.75)	[0.13, 1.72]	2.35	0.024	0.23
OCD	8.21 (5.06)	6.37 (4.70)	[0.47, 3.21]	2.72	0.010	0.38
Anxiety	4.92 (5.50)	4.63 (4.81)	[-0.84, 1.42]	0.52	0.606	0.06
Paranoid Ideation	4.97 (4.54)	3.71 (3.49)	[0.34, 2.19]	2.77	0.009	0.29
Interpersonal Sensitivity	4.45 (3.90)	3.74 (3.94)	[0.02, 1.40]	2.08	0.044	0.18
Brief Adherence Rating Scale	98.27 (3.10)	98.94 (2.35)	[-1.2, -0.06]	-2.23	0.032	0.21
Personal Recovery Outcome Measure	7.13 (1.66)	7.45 (1.63)	[-0.63, 0.00]	-2.05	0.047	0.19

Cohen’s d for repeated measures used: $d=\frac{{\stackrel{-}{y}}_2-{\stackrel{-}{y}}_1}{s_z}$, where $s_z=\sqrt{\frac{s_1^2+s_1^2-2r{s}_1{s}_2}{2(1-r)}},s_1,s_2$ and r are standard deviations of the pre and post measures and their correlation.