TABLE 3.
Multivariate models predicting age 15 WJ-R applied problems standardized score, highest math course taken by the end of high school and 4-year college enrollment
| Model 1: Age 15 applied problems scores (ordinary least squares regression) | Model 2: High school highest math course completion (ordered logistic regression) | Model 3: Four-year college enrollment (logistic regression) | |
|---|---|---|---|
| Counting mastery (C) | 1.7 | 1.67 | 1.99 |
| Counting, concrete representational arithmetic mastery (CR) | 7.28** | 2.71* | 1.87 |
| Counting, concrete and abstract arithmetic mastery (CRA) | 10.02*** | 3.88** | 3.63* |
| Skill with clocks | 3.94** | 1.12 | 1.2 |
| WJ-R memory for sentences (54 m) | 0.08 | 1 | 1 |
| Male | 4.92*** | 1.19 | 0.86 |
| Black | −0.77 | 0.86 | 1.23 |
| Other | 0.07 | 0.74 | 3.75 |
| Hispanic | −0.87 | 0.76 | 0.58 |
| Mother’s education (in years) | 0.89** | 1.24*** | 1.21** |
| Mother’s PPVT score | 0.10* | 1.01 | 1 |
| Proportion of epochs in center care (36–54 m) | 2.29 | 1.02 | 1.58 |
| Partner in-home (EC) | 4.19 | 2.21 | 2.57 |
| Stable income to needs (EC) | −0.38 | 1.12* | 0.97 |
| Average HOME score (EC) | 0.1 | 0.98 | 1.11* |
| Bayley MDI | −0.03 | 1.01 | 1 |
| n | 467 | 467 | 467 |
| Pseudo R2 | 0.3 | 0.27 | 0.31 |
| Bayesian information criteria (BIC) | 11,214.922 | 8,925.95 | 8,243.64 |
Note: High school course completion was coded as 1 = ‘Algebra I’, 2 = ‘Geometry’, 3 = ‘Algebra II’, 4 = ‘Advanced Mathematics’ and 5, ‘Calculus’.
Abbreviations: EC, average of the variable reported at 1-, 6-, 15-, 24-, 36- and 54-month interviews; HOME, home observation for measurement of the environment; m, months; MDI, mental developmental index; PPVT, peabody picture vocabulary test; WJ-R, Woodcock-Johnson revised.
*
p < .05
**
p < .01
***
p < .001.