Table 1.
Descriptive statistics for the executive function and temperament measures.
| Measure | n | M | SD | Min | Max | |
|---|---|---|---|---|---|---|
| 5-months | Fear (IBQ) | 196 | 2.18 | .79 | 1.00 | 4.25 |
| AB Scale Score | 201 | .87 | 1.07 | 0.00 | 7.00 | |
| AB Reversal | 40 | .28 | .39 | .00 | 1.00 | |
| EF Composite | 201 | .00 | 1.00 | −.87 | 5.27 | |
| 10-months | Fear (IBQ) | 182 | 2.86 | .95 | 1.07 | 5.50 |
| AB Scale Score | 187 | 3.84 | 1.58 | .00 | 8.00 | |
| AB Reversal | 173 | .48 | .37 | .00 | 1.00 | |
| EF Composite | 187 | .00 | 1.00 | −2.37 | 1.86 | |
| 2-years | Shyness (ECBQ) | 152 | 3.36 | .95 | 1.58 | 5.75 |
| DCCS Pre-switch | 137 | .69 | .25 | .00 | 1.00 | |
| Crayon Score | 150 | 3.10 | 2.12 | 1.00 | 6.00 | |
| Crayon Delay | 150 | 26.31 | 25.73 | .00 | 60.00 | |
| EF Composite | 152 | .00 | 1.00 | −1.75 | 1.68 | |
| 3-years | Shyness (CBQ) | 133 | 3.73 | 1.34 | 1.23 | 7.00 |
| DCCS Post-switch | 126 | .60 | .44 | .00 | 1.00 | |
| Tongue Task | 121 | .68 | .39 | .00 | 1.00 | |
| Simon Says | 114 | .33 | .43 | .00 | 1.00 | |
| EF Composite | 132 | .00 | 1.00 | −2.35 | 2.14 | |
| 4-years | Shyness (CBQ) | 124 | 3.46 | 1.33 | 1.00 | 6.83 |
| DCCS Post-switch | 117 | .77 | .38 | .00 | 1.00 | |
| Tongue Task | 120 | .90 | .24 | .00 | 1.00 | |
| Simon Says | 117 | .81 | .37 | .00 | 1.00 | |
| EF Composite | 120 | .00 | 1.00 | −4.13 | .76 |
Note. IBQ = Infant Behavior Questionnaire; AB = A-not-B; EF = Executive function; ECBQ = Early Childhood Behavior Questionnaire; DCCS = Dimensional Change Card Sort; CBQ = Children’s Behavior Questionnaire.