Table 3.

Comparing individuals randomized to not invite partner to study (n=652), randomized to invite partner and with partner response (n = 316), and randomized to invite partner and no partner response (n =326)

	Partner not invited			Partner Response			No Partner Response			p-value	Effect Size
Variable	n	M	SD	n	M	SD	n	M	SD
Relationship characteristics
Relationship satisfaction	590	4.16b	1.31	288	4.39a	1.27	293	3.80c	1.38	.00	0.03
Commitment - self	651	6.33b	1.08	314	6.50a	0.94	325	6.13c	1.21	.00	0.01
Commitment - partner	650	6.25b	1.20	315	6.51a	0.90	323	6.03c	1.31	.00	0.02
Break-up likelihood	649	1.94b	1.05	316	1.71a	0.92	324	2.19c	1.11	.00	0.03
Psychological aggression	650	2.35	1.74	314	2.33	1.70	324	2.15	1.62	.23	0.00
Physical aggression	652	0.47	0.90	314	0.45	0.89	324	0.41	0.81	.65	0.00
Communication danger signs	651	1.64	0.51	316	1.63	0.49	324	1.71	0.51	.08	0.00
Individual characteristics
Anxious attachment	652	2.38b	0.75	315	2.20a	0.70	325	2.43b	0.76	.00	0.01
Avoidance attachment	651	2.43b	0.68	315	2.31a	0.70	325	2.53c	0.75	.00	0.01
General psychological distress	651	2.26	0.94	316	2.19	0.88	324	2.36	0.94	.06	0.00
Health	651	3.69	0.88	315	3.74	0.84	324	3.67	0.95	.58	0.00
Financial hardship	645	0.02	0.83	313	−0.04	0.78	323	−0.00	0.73	.61	0.00
Religiosity	650	3.90	1.77	313	3.91	1.65	325	4.14	1.70	.10	0.00
Childhood conflict	643	2.62	0.82	315	2.57	0.74	324	2.61	0.75	.63	0.00
Demographic characteristics
Gender (1=female)	652	0.63b	.48	316	0.54a	n/a	326	0.72c	n/a	.00	0.02
Race (1=white)	645	0.76b	.43	313	0.84a	n/a	319	0.72b	n/a	.00	0.01
Cohabitation status (1=yes)	652	0.32b	n/a	316	0.42 a	n/a	326	0.22c	n/a	.00	0.02
Engaged (1=yes)	651	0.19	n/a	315	0.23a	n/a	323	0.15b	n/a	.05	0.01
Length of relationship	645	34.13	31.78	315	37.64	34.32	323	32.12	34.18	.10	0.00
Years of schooling	651	8.28	2.20	316	8.47	2.20	324	8.29	2.25	.45	0.00
Age	652	25.76	4.92	315	25.42	4.72	322	25.34	4.68	.37	0.00
Children in home (1=yes)	652	0.37	n/a	316	0.31	n/a	326	0.34	n/a	.12	0.03
Employed (1=yes)	650	0.75	n/a	314	0.79	n/a	324	0.76	n/a	.41	0.00
Income – self	634	4.25	2.69	306	4.00	2.57	313	4.03	2.49	.29	0.00

Note. Significant group differences indicated by superscripted letters (p < .05).