Table 7.
Fit statistics for nested models predicting mathematics achievement during preschool and kindergarten.
| Model | −2LL | χ2 | Δχ2 | Parameters | p | BIC | Δ BIC |
|---|---|---|---|---|---|---|---|
| PRESCHOOL MATHEMATICS ACHIEVEMENT | |||||||
| Domain general predictors | |||||||
| 1. Full | 1621.1 | 37.13 | 12 | – | 1694.8 | – | |
| 2. Drop non-significant interaction (Preliteracy) | 1621.1 | 37.12 | −0.01 | 11 | p > 0.10 | 1690.2 | −4.6 |
| 3. Drop non-significant interaction (EF) | 1622.4 | 36.43 | −0.69 | 10 | p > 0.10 | 1686.9 | −3.3 |
| 4. Drop non-significant interaction (parent education) | 1624.6 | 35.23 | −1.20 | 9 | p > 0.10 | 1679.8 | −7.1 |
| Add Quantitative predictors | |||||||
| 1. Model 4 above and Quantitative predictors | 1556.7 | 18.76 | 17 | – | 1648.8 | − | |
| 2. Drop non-significant interaction (Age) | 1557.8 | 18.29 | −0.47 | 16 | p > 0.10 | 1645.3 | −3.5 |
| 3. Drop non-significant interaction (NVC) | 1558.8 | 17.90 | −0.39 | 15 | p > 0.10 | 1641.7 | −3.6 |
| 4. Drop main effect (NVC) | 1561.1 | 18.83 | 0.93 | 14 | p > 0.10 | 1639.4 | −2.3 |
| KINDERGARTEN ACHIEVEMENT | |||||||
| Domain general predictors | |||||||
| 1. Full | 1467.6 | 21.90 | 14 | – | 1550.5 | – | |
| 2. Drop non-significant interaction (IQ) | 1467.8 | 21.80 | −0.10 | 13 | p > 0.10 | 1546.1 | −4.4 |
| 3. Drop non-significant interaction (Y1 EF) | 1468.1 | 21.70 | −0.10 | 12 | p > 0.10 | 1541.8 | −4.3 |
| 4. Drop non-significant interaction (Y2 EF) | 1469.0 | 21.27 | −0.43 | 11 | p > 0.10 | 1538.1 | −3.7 |
| 5. Drop non-significant interaction (parent education) | 1471.6 | 20.15 | −1.12 | 10 | p > 0.10 | 1531.5 | −6.6 |
| Add Quantitative predictors | |||||||
| 1. Model 5 above and Quantitative predictors | 1445.0 | 14.85 | 18 | – | 1541.7 | − | |
| 2. Drop non-significant interaction (NR) | 1445.3 | 14.73 | −0.12 | 17 | p > 0.10 | 1537.4 | −4.3 |
| 3. Drop non-significant interaction (NVC) | 1445.6 | 14.62 | −0.11 | 16 | p > 0.10 | 1533.1 | −4.3 |
| 4. Drop non-significant interaction (GN) | 1446.5 | 14.29 | −0.33 | 15 | p > 0.10 | 1529.1 | −4.0 |
| 5. Drop non-significant main effect (NVC) | 1448.9 | 15.18 | 0.89 | 14 | p > 0.10 | 1527.2 | −1.9 |
| 6. Drop non-significant main effect (NR) | 1451.6 | 16.23 | 1.05 | 13 | p > 0.05 | 1525.3 | −1.9 |
EF, Executive Functions; GN, Give-a-Number; DQD, Discrete Quantity Discrimination; NR, Numeral Recognition; NVC, Nonverbal Calculation. Age, age at beginning of first year of preschool.