Table 4. Linear regression with relationship length difference predicting differences between primary and secondary relationships with partners who do not cohabitate.
| Variable | Primary-Secondary Difference | Paired Data | ||||
|---|---|---|---|---|---|---|
| Intercept (SE) | Slope (SE) | n | ra | t | d | |
| Relationship acceptance: Family | 1.84 (0.26)**b | 0.23 (0.07)** | 119 | .28 | 7.15 | 0.79 |
| Relationship acceptance: Friends | 1.61 (0.22)** | 0.05 (0.06) | 120 | .26 | 7.27 | 0.81 |
| Romantic secrecy | -1.71 (0.27)** | -0.18 (0.07)* | 120 | .48 | -6.28 | -0.59 |
| Investment size | 2.16 (0.19)** | 0.12 (0.05)** | 120 | .38 | 11.57 | 1.18 |
| Relationship satisfaction | 1.42 (0.17)** | -0.00 (0.05) | 120 | .16 | 8.17 | 0.97 |
| Quality of alternatives | -0.78 (0.14)** | 0.00 (0.04) | 120 | .50 | -5.41 | -0.49 |
| Commitment level | 2.07 (0.19)** | 0.09 (0.05) | 120 | .31 | 11.14 | 1.20 |
| Relationship communication | 1.58 (0.12)** | -0.10 (0.03)** | 123 | .50 | 12.75 | 1.15 |
| Quality of communication | 0.93 (0.10)** | -0.00 (0.03) | 126 | .25 | 9.69 | 1.06 |
| Percentage of sexual activity | -8.34 (2.68)** | -2.91 (0.71)** | 120 | .34 | -3.11 | -0.33 |
a r = the partial correlation controlling for relationship length difference between scores for primary and secondary relationships.
b **p < .01,
*p < .05.