| Parameter | Description |
|---|---|
| sigma_su | Covariance of residuals x and y |
| sigma_ly1lx1 | Covariance of intercepts x and y |
| sigma_g2ly1 | Covariance of change factor x (g2) with the initial true score y (ly1) |
| sigma_j2lx1 | Covariance of change factor y (j2) with the initial true score x (lx1) |
| sigma_j2g2 | Covariance of change factors y (j2) and x (g2) |
| delta_con_xy | Change score x (t) determined by true score y (t) |
| delta_con_yx | Change score y (t) determined by true score x (t) |
| delta_lag_xy | Change score x (t) determined by true score y (t-1) |
| delta_lag_yx | Change score y (t) determined by true score x (t-1) |
| xi_con_xy | Change score x (t) determined by change score y (t) |
| xi_con_yx | Change score y (t) determined by change score x (t) |
| xi_lag_xy | Change score x (t) determined by change score y (t-1) |
| xi_lag_yx | Change score y (t) determined by change score x (t-1) |