Table 2.
Descriptive Statistics for Variables in the Analysis
| N | Mean/% | St. Dev. | Min | Median | Max | |
|---|---|---|---|---|---|---|
| Task-Based Sustained Attention 7mos (EARS) | 1,172 | 0.77 | 0.19 | 0.00 | 0.82 | 1.00 |
| Task-Based Sustained Attention 15mos (EARS) | 1,134 | 0.70 | 0.22 | 0.00 | 0.75 | 1.00 |
| Global Sustained Attention 7mos (IBR) | 1,196 | 17.68 | 2.47 | 4.50 | 18.00 | 24.00 |
| Global Sustained Attention 15mos (IBR) | 1,155 | 17.71 | 2.70 | 4.00 | 18.00 | 23.50 |
| Executive Functions preK | 1,038 | 0.29 | 0.48 | −1.98 | 0.35 | 1.40 |
| Effortful Control Mean preK (CBQ) | 793 | 4.92 | 1.17 | 1.00 | 5.08 | 7.00 |
| Emotion Regulation preK (SCS) | 816 | 3.91 | 1.03 | 1.20 | 4.00 | 6.00 |
| Cumulative Risk 7mo | 1204 | 0.01 | 0.66 | −2.93 | 0.01 | 1.98 |
| Child’s Race (% African American) | 1292 | 42% | ||||
| Child’s Sex (% Female) | 1292 | 51% | ||||
| State of Residence (% NC) | 1292 | 60% |
PreK, Pre-Kindergarten; mo, months; IBR, Infant Behavior Record; EARS, Early Attention to Reading Situations; CBQ, Children’s Behavior Questionnaire; SCS, Social Competence Scale.