Table 3.
Standardized parameter estimates (standard errors) from the traditional and nested cross-lagged panel models examining cannabis use
| Model 1 | Model 2 | Model 3 | Model 4 | |
|---|---|---|---|---|
| Autoregressive | ||||
| Cannabis Use | ||||
| Bl → 6mo | 0.75 (0.03)*** | 0.77 (0.03)*** | 0.75 (0.03)*** | 0.77 (0.03)*** |
| 6mo → 12mo | 0.82 (0.02)*** | 0.82 (0.02)*** | 0.82 (0.02)*** | 0.82 (0.02)*** |
| Depression Symptoms | ||||
| Bl → 6mo | 0.64 (0.04)*** | 0.64 (0.04)*** | 0.66 (0.03)*** | 0.65 (0.03)*** |
| 6mo → 12mo | 0.60 (0.04)*** | 0.60 (0.04)*** | 0.63 (0.04)*** | 0.63 (0.04)*** |
| Cross-lagged | ||||
| Cannabis Use → Depression Symptoms | ||||
| Bl → 6mo | 0.04 (0.05) | 0.04 (0.05) | — | — |
| 6mo → 12mo | 0.11 (0.05)** | 0.11 (0.05)** | — | — |
| Depression Symptoms → Cannabis Use | ||||
| Bl → 6mo | 0.06 (0.04) | — | 0.06 (0.04) | — |
| 6mo → 12mo | 0.01 (0.03) | — | 0.01 (0.03) | — |
| Covariance | ||||
| Cannabis Use/ Depression Symptoms | ||||
| Bl | 0.30 (0.05)*** | 0.30 (0.05)*** | 0.30 (0.05)*** | 0.30 (0.05)*** |
| 6mo | 0.10 (0.06) | 0.09 (0.06) | 0.09 (0.06) | 0.09 (0.06) |
| 12mo | 0.03 (0.06) | 0.03 (0.06) | 0.03 (0.06) | 0.03 (0.06) |
Note. Model 1: Bidirectional associations from depression symptoms to cannabis use vs. cannabis use to depression symptoms; Model 2: cannabis use to depression symptoms; Model 3: depression symptoms to cannabis use; Model 4: no cross-lagged parameters modeled. Assessments: Bl=baseline; 6mo=6 months post-baseline; 12mo=12 months post-baseline.