TABLE 3.
Model comparison for PPVT score.
Predictor | Full PPVT model | Preferred PPVT model | |||||
Adjusted R2 = 0.41 | Adjusted R2 = 0.40 | ||||||
RSE = 0.72 (300 DF) | RSE = 0.73 (354 DF) | ||||||
p < 0.0001 |
p < 0.0001 |
||||||
β | SE | p < | β | SE | p < | 95% CI | |
Intercept | −6.77 | 0.67 | 0.0001 | −5.89 | 0.49 | 0.0001 | −6.84 to −4.93 |
Age | 0.07 | 0.006 | 0.0001 | 0.07 | 0.006 | 0.0001 | 0.05–0.08 |
Boy | −0.18 | 0.08 | 0.05 | −0.16 | 0.08 | 0.05 | −0.31 to −0.005 |
Multilingual | −0.24 | 0.10 | 0.05 | −0.32 | 0.09 | 0.001 | −0.50 to −0.14 |
Swedish stronger language | 0.58 | 0.17 | 0.001 | 0.70 | 0.15 | 0.0001 | 0.40–1.0 |
Education parent 1 | 0.09 | 0.03 | 0.01 | ||||
Education parent 2 | 0.02 | 0.03 | 0.07 | 0.02 | 0.01 | 0.02–0.35 | |
Income parent 1 | 0.17 | 0.08 | 0.05 | 0.21 | 0.07 | 0.01 | 0.08–0.35 |
Income parent 2 | 0.10 | 0.09 | |||||
Preschool time/week | 0.0003 | 0.007 | |||||
Age at preschool start | 0.001 | 0.008 | |||||
Preschool quality | −0.05 | 0.04 |
Standardized estimates, standard errors, and significance levels for predictors are included, as well as 95% confidence intervals for predictors in the preferred model. Adjusted R2 and residual standard error (RSE) displayed for the full model and the preferred model. Significant predictors in bold script.