TABLE 4.

Relationships of primary outcome measures and cognitive measures by treatment group, treatment exposed sample

													CBT4CBT process measures
	Total no. of sessions completed			Total days in treatment			Maximum continuous days of abstinence			Percentage of positive urine samples			No. of CBT homeworks completed			No. of CBT4CBT modules completed
	r	p	n	r	p	n	r	p	n	r	p	n	r	p	n	r	p	n
All participants (N = 72)
Shipley estimated IQ, age adjusted	−.10	.42	71	.02	.84	72	.09	.43	72	−.21	.09	71
Digit Symbol scaled score	−.04	.78	58	−.23	.08	58	−.27	.04	57	.25	.06	58
CPT omissions t-score	−.09	.50	59	−.12	.36	59	−.13	.33	58	.28	.03	59
CPT commissions	−.08	.57	59	−.23	.09	59	.06	.67	58	−.06	.64	59
CPT reaction time	.05	.73	59	.30	.02	59	.13	.33	58	.03	.82	59
BART adjusted average pumps	−.35	.01	58	−.11	.40	58	−.26	.05	58	.24	.07	58
CBT4CBT only (N = 35)
Shipley estimated IQ, age adjusted	−.01	.95	34	.10	.55	35	.20	.26	35	−.30	.09	34	.13	.49	28	.27	.11	35
Digit Symbol scaled score	−.01	.96	27	−.12	.54	27	−.26	.20	26	.34	.08	27	−.30	.16	23	−.18	.36	27
CPT omissions t-score	.06	.78	28	.16	.41	28	−.12	.56	27	.20	.32	28	.12	.59	24	.06	.75	28
CPT commissions t-score	−.03	.89	28	−.34	.08	28	.00	.99	27	−.09	.64	28	−.22	.29	24	−.31	.11	28
CPT reaction time t score	.08	.67	28	.47	.01	28	.21	.29	27	−.17	.38	28	.27	.20	24	.40	.04	28
BART adj avg pumps	−.48	.01	27	−.16	.42	27	−.40	.04	27	.45	.02	27	−.41	.05	24	−.31	.12	27
TAU only (N = 37)
Shipley estimated IQ, age adjusted	−.21	.22	37	−.08	.66	37	−.04	.83	37	−.14	.42	37
Digit symbol scaled score	−.07	.70	31	−.35	.05	31	−.29	.11	31	.17	.37	31
CPT omissions t score	−.22	.24	31	−.33	.07	31	−.11	.55	31	.30	.10	31
CPT commissions t-score	−.13	.48	31	−.12	.54	31	.13	.48	31	−.05	.80	31
CPT reaction time t-score	−.01	.95	31	.07	.71	31	.03	.87	31	.24	.19	31
BART adjusted average pumps	−.16	.39	31	−.06	.74	31	−.15	.43	31	.10	.59	31

Note: Numbers in bold indicate statistically significant relationships.