Table 2.

Results of univariate, bivariate, and multivariate growth curve models of changes in primary study variables

	Univariate Model Results: b (SE)		Bivariate Model Results: b (SE)
Variable	Average slope	Treatment effect on slope	Treatment ➜ mech. slope		Treatment ➜ CSI slope		Mech. slope ➜ CSI slope		Indirect effect of treatment
			(a)	Cohen’s d	(c’)	Cohen’s d	(b)	Cohen’s d	(a*b)	Cohen’s d
Relationship satisfaction	.437*** (.075)	.304*** (.045)	X	X	X	X	X	X	X	X
Target problem acceptance	0.054* (.024)	−.096** (.036)	−.089* (.037)	−0.346	.291*** (.057)	0.568	−.074 (.271)	−0.144	.007 (.025)	0.007
Target problem confidence	.056* (.025)	.211*** (.028)	.227*** (.028)	0.867	−.199* (.080)	−0.388	2.231*** (.248)	4.355	.506*** (.086)	0.494
Target problem severity	−.137*** (.012)	−.070*** (.018)	−.070*** (.018)	−0.428	.199*** (.049)	0.388	−1.193*** (.311)	−2.329	.084* (.010)	0.082
Emotional intimacy	.499*** (.070)	.238*** (.057)	.234*** (.056)	0.393	−.032 (.100)	−0.062	1.433*** (.274)	2.797	.335** (.111)	0.327
Self-protective orientation	−.110*** (.031)	−.125** (.048)	−.125** (.048)	−0.232	.116 (.107)	0.226	−1.509** (.575)	−2.946	.189† (.104)	0.185
Negative communication	−.347*** (.060)	−.468*** (.098)	−.469*** (.098)	−0.332	.082 (.095)	0.160	−.473** (.171)	−0.923	.222* (.098)	0.217
Positive communication	.030 (.039)	.123* (.057)	.122* (.057)	0.180	.170* (.079)	0.332	1.100** (.354)	2.147	.135 (.083)	0.132
			Multivariate Model Results
Target problem severity	-	-	−.069*** (.018)	−0.422			−.916** (.284)	−1.880	0.063* (0.026)	0.065
Target problem confidence	-	-	.219*** (.027)	0.837	−.101 (.129)	−0.207	.094 (.756)	0.193	0.021 (0.166)	0.022
Emotional intimacy	-	-	−.050 (.082)	−0.084			1.658*** (.488)	3.402	−0.084 (0.141)	−0.086
Negative communication	-	-	.076 (.132)	0.057			.012 (.059)	0.025	0.001 (0.005)	0.001

Note:

^†p <.10,

^*p <.05,

^**p <.01,

^***p <.001.

Mech. = mechanistic variable. CSI = relationship satisfaction. N = 600 individuals.