Table 1.
Marijuana Use and Relationship Functioning, Descriptive Statistics over Four Waves
| Variable | Means (SD) | Averaged α | r’s range over assessment points 1 | |||
|---|---|---|---|---|---|---|
|
|
||||||
| Baseline (T1) | 4-month (T2) | 7-month (T3) | 10-month (T4) | |||
| Marijuana use frequency | 5.41 (2.25) | 5.11 (2.51) | 4.78 (2.71) | 4.73 (2.67) | -- | 0.60 < r < 0.80 |
| Absolute marijuana use discrepancy | 1.94 (2.37) | 2.19 (2.53) | 2.41 (2.63) | 2.23 (2.62) | -- | 0.54 < r < 0.81 |
| Concordant use 1 | 75/183 (41.0%) | 67/155 (43.2%) | 57/142 (40.1%) | 58/141 (41.1%) | ||
| Relationship Satisfaction (IMS) | 6.65 (1.38) | 6.01 (2.07) | 6.09 (2.04) | 6.25 (1.96) | 0.947 | 0.57 < r < 0.70 |
| Partner Responsiveness (PAIR) | 4.02 (0.85) | 3.82 (1.02) | 3.82 (1.00) | 3.85 (1.01) | 0.738 | 0.51 < r < 0.70 |
| Negative social exchange (TENSE) | 0.85 (0.65) | 0.92 (0.77) | 0.89 (0.82) | 0.83 (0.77) | 0.936 | 0.56 < r < 0.74 |
| Conflict in close relationships | 1.38 (1.05) | 1.60 (1.34) | 1.61 (1.40) | 1.49 (1.35) | 0.912 | 0.52 < r < 0.72 |
| Psychological perpetration (CTS-2) | 19.65 (21.58) | 11.32 (17.67) | 18.01 (18.06) | 18.07 (18.07) | 0.706 | 0.46 < r < 0.63 |
| Psychological victimization (CTS-2) | 20.07 (23.17) | 12.60 (20.02) | 13.16 (22.81) | 11.61 (21.25) | 0.750 | 0.37 < r < 0.64 |
| Physical perpetration (CTS-2) | 2.47 (7.28) | 3.40 (12.49) | 1.85 (6.73) | 1.92 (10.07) | 0.767 | 0.26 < r < 0.47 |
| Physical victimization (CTS-2) | 2.87 (8.13) | 3.83 (14.47) | 3.21 (13.50) | 2.77 (12.00) | 0.822 | 0.31 < r < 0.51 |
Note:
1
All p < .01.
1
Concordant use indicates percentage of couples with identical marijuana use frequency by female and male partner (discrepancy = 0).