Table 1.
Analytic features of the 43 datasets
| Dataset | Baseline n | Follow-up n | Changen | No. of individual predictors | No. of relationship predictors | Baseline satisfaction mean (SD) | Follow-up satisfaction mean (SD) | Baseline commitment mean (SD) | Follow-up commitment mean (SD) |
| 1 | 148 | 133 | 146 | 97 | 50 | 6.01 (0.89) | 5.56 (1.53) | 5.88 (1.25) | 5.63 (1.59) |
| 2 | 240 | 228 | 240 | 98 | 50 | 5.84 (1.21) | 5.59 (1.58) | 6.77 (0.54) | 6.49 (1.05) |
| 3 | 176 | 156 | 154 | 13 | 6 | 6.05 (1.02) | 6.00 (1.09) | NA | NA |
| 4 | 166 | 166 | 166 | 32 | 71 | 5.31 (0.69) | 5.01 (1.02) | NA | NA |
| 5 | 350 | 316 | 343 | 42 | 50 | 69.59 (9.49) | 66.18 (13.87) | 6.87 (0.43) | 6.71 (0.72) |
| 6 | 172 | 90 | 90 | 9 | 5 | 131.20 (21.04) | 121.48 (31.16) | NA | NA |
| 7 | 201 | 119 | 116 | 11 | 9 | 132.05 (21.00) | 122.84 (30.67) | NA | NA |
| 8 | 194 | 157 | 155 | 9 | 22 | 5.86 (1.19) | 5.74 (1.27) | 6.19 (1.04) | 6.11 (1.10) |
| 9 | 129 | 126 | 126 | 4 | 11 | 6.03 (1.05) | 5.93 (1.25) | 6.59 (0.77) | 6.38 (1.07) |
| 10 | 88 | 61 | 61 | 7 | 10 | 7.96 (0.99) | 7.79 (1.38) | 6.72 (0.57) | 8.26 (1.03) |
| 11 | 159 | 117 | 115 | 23 | 15 | 6.01 (0.88) | 5.68 (1.22) | 6.13 (0.91) | 5.98 (1.05) |
| 12 | 124 | 124 | 124 | 9 | 8 | 6.03 (0.72) | 6.02 (0.80) | NA | NA |
| 13 | 200 | 145 | 192 | 27 | 18 | 5.92 (0.76) | 5.97 (1.00) | 6.48 (0.65) | 6.39 (0.90) |
| 14 | 122 | 106 | 106 | 21 | 21 | 5.97 (0.85) | 5.93 (1.07) | 6.34 (0.84) | 6.26 (1.05) |
| 15 | 239 | 158 | 206 | 33 | 20 | 6.84 (1.60) | 6.82 (1.65) | 7.48 (0.93) | 7.39 (1.10) |
| 16 | 450 | 365 | 410 | 11 | 5 | 6.45 (0.68) | 6.09 (0.96) | 6.81 (0.45) | 6.62 (0.75) |
| 17 | 345 | 120 | 195 | 40 | 21 | 5.98 (0.91) | 5.55 (1.38) | 6.11 (1.05) | 5.93 (1.29) |
| 18 | 245 | 107 | 192 | 11 | 29 | 6.78 (1.21) | 6.71 (1.08) | 6.75 (1.17) | 6.85 (0.96) |
| 19 | 80 | 32 | 51 | 6 | 11 | 28.95 (4.61) | 27.44 (5.46) | NA | NA |
| 20 | 386 | 278 | 343 | 37 | 41 | 42.65 (5.14) | 41.26 (6.81) | NA | NA |
| 21 | 255 | 189 | 189 | 41 | 32 | 5.97 (0.83) | 5.93 (0.84) | 6.47 (0.73) | 6.34 (1.04) |
| 22 | 347 | 216 | 283 | 24 | 22 | 6.02 (0.76) | 5.82 (0.93) | 6.48 (0.67) | 6.23 (1.08) |
| 23 | 318 | 258 | 289 | 21 | 19 | 41.89 (4.56) | 41.21 (5.83) | NA | NA |
| 24 | 394 | 230 | 372 | 17 | 15 | 4.52 (0.49) | 4.50 (0.55) | 4.87 (0.25) | 4.86 (0.36) |
| 25 | 172 | 118 | 144 | 32 | 29 | 70.69 (9.06) | 76.63 (7.78) | 6.53 (0.65) | 6.44 (0.69) |
| 26 | 464 | 322 | 322 | 32 | 4 | −0.00 (0.97) | −0.00 (1.02) | 6.53 (1.68) | 6.58 (1.94) |
| 27 | 254 | 247 | 247 | 75 | 69 | 6.16 (0.89) | 5.95 (1.14) | 5.45 (0.63) | 5.37 (0.59) |
| 28 | 206 | 130 | 158 | 12 | 14 | 4.45 (0.70) | 4.48 (0.70) | 5.98 (0.88) | 5.88 (0.90) |
| 29 | 564 | 261 | 478 | 32 | 19 | 4.46 (1.21) | 4.34 (1.36) | 5.61 (1.08) | 6.00 (1.07) |
| 30 | 237 | 208 | 205 | 16 | 19 | 6.11 (1.02) | 5.92 (1.31) | 6.64 (0.80) | 6.46 (1.01) |
| 31 | 203 | 167 | 167 | 88 | 28 | 31.23 (2.69) | 31.24 (3.27) | NA | NA |
| 32 | 196 | 136 | 196 | 8 | 4 | 5.96 (1.13) | 5.85 (1.23) | 6.33 (1.00) | 6.19 (1.08) |
| 33 | 156 | 156 | 156 | 9 | 10 | 17.65 (3.63) | 17.99 (3.76) | NA | NA |
| 34 | 323 | 316 | 316 | 17 | 11 | 16.90 (2.93) | 16.95 (3.37) | NA | NA |
| 35 | 192 | 161 | 161 | 20 | 17 | 5.89 (1.06) | 5.74 (1.38) | 6.41 (0.88) | 6.29 (1.14) |
| 36 | 111 | 139 | 111 | 44 | 2 | 117.86 (22.45) | 123.06 (19.42) | NA | NA |
| 37 | 97 | 31 | 72 | 12 | 19 | 5.22 (1.50) | 5.35 (1.33) | 6.19 (0.96) | 6.45 (0.95) |
| 38 | 12,200 | 7,731 | 9,886 | 63 | 26 | 5.42 (1.60) | 5.89 (1.28) | 1.52 (0.88) | 1.57 (0.39) |
| 39 | 373 | 190 | 322 | 58 | 131 | 5.54 (0.93) | 5.49 (0.97) | 6.80 (0.90) | 6.84 (0.87) |
| 40 | 151 | 109 | 133 | 39 | 54 | 6.66 (1.61) | 7.00 (1.16) | 6.75 (1.08) | 6.74 (0.90) |
| 41 | 240 | 181 | 181 | 38 | 24 | 7.63 (1.16) | 5.92 (1.10) | 7.79 (1.30) | 6.05 (1.02) |
| 42 | 390 | 351 | 327 | 13 | 19 | 41.39 (4.65) | 39.98 (6.19) | 6.55 (0.56) | 5.14 (0.49) |
| 43 | 144 | 73 | 73 | 14 | 31 | 5.09 (0.72) | 5.09 (0.83) | 7.83 (1.25) | 7.95 (1.26) |
Note: The three n columns refer to the number of usable participants in the models predicting baseline, follow-up, and change in satisfaction, respectively. See SI Appendix, Table S2 for dataset authorship details. Note that for datasets with more than two time points, change scores could still be calculated for some participants whose data were missing at the final wave. NA, not applicable.