Table 3. Comparisons of competitive employment outcomes at 18 months.

	IPS	Control	d a	Test of Significanceb (without covariates)		Test of Significanceb,c (with covariates)
All Sample	N = 49 n (%)	N = 60 n (%)
Job acquisition	40 (81.6%)	25 (41.7%)	0.86	χ2(1) = 17.9	<.001	Wald (1) = 14.2	<.001
Ever working ≥20 hrs/wk	32 (65.3%)	17 (28.3%)	0.76	χ2(1) = 14.9	<.001	Wald (1) = 10.3	<.001
	M (SD)	M (SD)
Total weeks	25.00 (26.89)	6.97 (14.09)	0.75	t = 5.36	<.001	t = 4.69	<.001
Job tenure (weeks)	20.06 (23.09)	5.31 (10.06)	0.72	t = 5.29	<.001	t = 4.64	<.001
Total hours*	660.63 (879.13)	203.66 (644.34)	0.56	t = 5.11	<.001	t = 4.40	<.001
Hours per week*	18.95 (12.98)	10.23 (15.97)	0.63	t = 4.42	<.001	t = 3.76	<.001
Total wage*†	$6,301 ($9,377)	$2,018 ($7,591)	0.48	t = 4.77	<.001	t = 4.12	<.001
Number of jobs	1.76 (1.39)	0.72 (1.17)	0.78	t = 4.91	<.001	t = 4.35	<.001
Worker Sample	N = 40 n (%)	N = 25 n (%)
Ever working ≥20 hrs/wk	32 (80.0%)	17 (68.0%)	0.28	χ2(1) = 1.19	0.28	Wald (1) = 0.42	0.52
	M (SD)	M (SD)
Total weeks	30.63 (26.70)	16.73 (17.83)	0.56	t = 2.43	<.05	t = 2.12	<.05
Job tenure (weeks)	24.57 (23.29)	12.73 (12.25)	0.57	t = 2.34	<.05	t = 2.06	<.05
Total hours*	813.09 (910.33)	488.78 (935.67)	0.35	t = 2.09	<.05	t = 1.50	0.14
Hours per week*	23.32 (10.18)	24.55 (16.15)	−0.10	t = 0.38	0.70	t = 0.66	0.51
Total wage*†	$7,755 ($9,858)	$4,844 ($11,287)	0.28	t = 1.39	0.17	t = 0.84	0.41
Number of jobs	2.15 (1.23)	1.72 (1.24)	0.35	t = 1.66	0.10	t = 1.24	0.22
Days to first job	126.70 (107.72)	197.12 (128.98)	−0.62	t = −2.35	<.05	t = −2.01	<.05

^ad refer to standized mean difference effect size.

^bAll continuous outcome variables log transformed for significance testing.

^cCovariates were work history (weeks worked in past 5 years), ethicity (Caucasian/other), diagnosis (psychotic disorder/other)

^*One case in IPS was missing hours data.

^†Wage was adjusted into August 2012 dollars using the Consumer Price Index for All Urban Consumers.