Table 2.

Adjusted means, SEs, and main site access condition effects at the end of the 8-week site access/delay period for spouse primary, secondary, and partner-related tertiary outcomes.

	iCST		DTC
Outcome measure	M	SE	M	SE	F(1,83)	p	d	d 95% CI
Spouse Primary
SSI	3.28	.05	2.96	.05	26.01a	<.001	1.02	[.64, 1.51]
BDI-II	7.32	1.2	13.64	1.39	10.71	.002	−.65	[−1.21, −.35]
Spouse Secondary
STAXI-II State Anger	16.90	.39	19.14	.61	10.54	.002	−.70	[−1.62, −.64]
STAXI-II Anger Expression	35.10	.99	35.48	.92	.14	.71	−.06	[−.41, .26]
DASS-Anxiety	1.81	.37	2.98	.73	2.52	.12	−.32	[−.74, .01]
DASS-Stress	7.34	.99	8.35	1.18	.48	.49	−.14	[−.55, .22]
Partner-related tertiary
PDA	18.34	3.52	20.02	4.01	.05b	.81	−.03	[−.31, .20]
DDD	6.49	.89	5.92	.69	.18c	.67	.08	[−.26, .40]

Note: iCST = Internet-based Coping Skills Training; DTC = Delayed Treatment Control; d = standardized mean difference (iCST – DTC); CI = confidence interval of d; SSI = Spouse Situation Inventory; BDI-II = Beck Depression Inventory, Second Edition; STAXI-II S-Ang = State Anger subscale of the State Trait Anger Expression Inventory, Second Edition; STAXI-II AXI = Anger Expression of the State Trait Anger Expression Inventory, Second Edition; DASS = Depression Anxiety and Stress Scales; PDA = Weekly Percentage of Days Abstinent; DDD = weekly average Drinks per Drinking Day. All analysis models controlled for the baseline value of the dependent variable. Analyses of BDI-II, STAXI-II, and DASS subscales were conducted on square root, negative inverse, and square root transformed scores, respectively. Analyses of PDA and DDD were conducted on arsine and square root transformed values, respectively. Means for PDA and DDD are at the midpoint of the access/delay interval. Except for SSI scores, which were not transformed, means presented are back-transformed, with bootstrapped SEs.d values are based on iCST-DTC differences in adjusted means of transformed scores, where applicable, divided by the baseline SD; dbootstrap confidence intervals are bias-corrected.

Ns = 43 each in iCST and DTC for BDI-II, STAXI-II, and DASS variables; iCST-DTC respective Ns = 42 and 43 for SSI, 41 and 42 for PDA, and 40 and 39 for DDD.

^adfs = 1,82;

^bdfs = 1, 76.9;

^cdfs = 1, 72.7.