Table 2.

Within-Couple Fixed-Effect Estimates from a Dyadic Multilevel Model of Daily Intimacy Regressed on Capitalization and Social Support Attempts (N = 99 couples, days = 826)

				95% CI
Fixed effects (intercept, slopes)	Estimate (SE)	Standardized estimatea	p-value	Lower	Upper
P Intercept	3.92 (0.11)		<.001	3.72	4.13
S Intercept	3.56 (0.11)		<.001	3.34	3.78
Within-Couple Actor Effects
P Cap Attempt Slope	0.18b (0.08)	0.26	.019	0.03	0.34
S Cap Attempt Slope	0.18b (0.08)	0.24	.019	0.03	0.34
P SS Attempt Slope	0.26 (0.09)	0.37	.003	0.09	0.43
S SS Attempt Slope	-0.01 (0.09)	-0.01	.956	-0.18	0.17
P Best Event Positivity Slope	0.12 (0.05)	0.17	.009	0.03	0.21
S Best Event Positivity Slope	0.16 (0.05)	0.22	.001	0.07	0.25
P Worst Event Negativity Slope	-0.06 (0.03)	-0.09	.028	-0.10	-0.01
S Worst Event Negativity Slope	-0.01 (0.03)	-0.01	.722	-0.06	0.04
Within-Couple Partner Effects
P Cap Attempt Slope	0.05c (0.08)	0.07	.498	-0.10	0.21
S Cap Attempt Slope	0.05c (0.08)	0.07	.498	-0.10	0.21
P SS Attempt Slope	0.17d (0.07)	0.23	.023	0.02	0.31
S SS Attempt Slope	0.17d (0.07)	0.24	.023	0.02	0.31
P Best Event Positivity Slope	0.08 (0.05)	0.11	.081	-0.01	0.18
S Best Event Positivity Slope	0.000 (0.04)	0.00	.991	-0.08	0.08
P Worst Event Negativity Slope	-0.03 (0.03)	-0.04	.265	-0.09	0.02
S Worst Event Negativity Slope	-0.05 (0.02)	-0.07	.036	-0.09	-0.003

Note. P=Patient; S=Spouse; Cap = Capitalization; SS = Social Support. All p-values are two-tailed. Although not displayed, time (i.e., day) and the patient-spouse covariances for the upper- and lower-level random effects were included in the model. Intraclass correlations were 0.65 for patient intimacy and 0.63 for spouse intimacy.

^aStandardized slope estimates are in standard deviation metric of the outcome (i.e., fixed estimate divided by within-couple SD of the outcome).

^b-dPatient and spouse estimates were constrained to be equal, supported by nonsignificant differences in nested chi-square tests of model fit.