Table 2.
Parameter estimates for the effect of learner group and stimulus type on Day 1 learning
| Estimate | SE | df | t | p | |
|---|---|---|---|---|---|
| Intercept | 0.783 | 0.023 | 291.8 | 33.35 | <.0001 |
| Linear | 0.236 | 0.036 | 428.3 | 6.54 | <.0001 |
| Quadratic | −0.128 | 0.030 | 1,824.0 | −4.29 | <.0001 |
| RD‐only: Intercept | −0.025 | 0.026 | 291.8 | −0.93 | .352 |
| RD + DLD: Intercept | −0.099 | 0.031 | 291.8 | −3.19 | .002 |
| Cohort: Intercept | −0.148 | 0.023 | 304.0 | −6.52 | <.0001 |
| Rhyme: Intercept | −0.037 | 0.023 | 304.0 | −1.61 | .108 |
| RD‐only: Linear | −0.047 | 0.041 | 428.3 | −1.16 | .245 |
| RD + DLD: Linear | −0.115 | 0.048 | 428.3 | −2.42 | .016 |
| RD‐only: Quadratic | 0.058 | 0.034 | 1,824.0 | 1.74 | .082 |
| RD + DLD: Quadratic | 0.104 | 0.039 | 1,824.0 | 2.64 | .008 |
| Cohort: Linear | 0.036 | 0.046 | 304.0 | 0.78 | .438 |
| Rhyme: Linear | −0.056 | 0.046 | 304.0 | −1.22 | .225 |
| Cohort: Quadratic | 0.133 | 0.042 | 1,824.0 | 3.17 | .002 |
| Rhyme: Quadratic | 0.104 | 0.042 | 1,824.0 | 2.48 | .013 |
| RD‐only: Cohort: Intercept | −0.028 | 0.026 | 304.0 | −1.07 | .283 |
| RD + DLD: Cohort: Intercept | 0.029 | 0.030 | 304.0 | 0.96 | .336 |
| RD‐only: Rhyme: Intercept | 0.004 | 0.026 | 304.0 | 0.17 | .863 |
| RD + DLD: Rhyme: Intercept | 0.027 | 0.030 | 304.0 | 0.92 | .360 |
| RD‐only: Cohort: Linear | −0.160 | 0.052 | 304.0 | −3.07 | .002 |
| RD + DLD: Cohort: Linear | −0.108 | 0.061 | 304.0 | −1.78 | .076 |
| RD‐only: Rhyme: Linear | 0.050 | 0.052 | 304.0 | 0.96 | .337 |
| RD + DLD: Rhyme: Linear | 0.088 | 0.061 | 304.0 | 1.45 | .148 |
| RD‐only: Cohort: Quadratic | −0.028 | 0.047 | 1,824.0 | −0.59 | .553 |
| RD + DLD: Cohort: Quadratic | −0.125 | 0.055 | 1,824.0 | −2.25 | .025 |
| RD‐only: Rhyme: Quadratic | −0.099 | 0.047 | 1,824.0 | −2.09 | .037 |
| RD + DLD: Rhyme: Quadratic | −0.110 | 0.055 | 1,824.0 | −1.99 | .047 |
Parameters for the RD‐only and RD + DLD groups are estimated relative to the TD group, whereas parameters for the cohort and rhyme item pair conditions are estimated relative to the unrelated item pair condition.