Table 4.
Summary statistics.
| Mean | SD | Median | Minimum | Maximum | Variable range | |
|---|---|---|---|---|---|---|
| Home environment | ||||||
| Total home scores | 25.98 | 3.89 | 26.00 | 15.00 | 32.00 | 0–50 |
| Neighborhood condition | ||||||
| Total neighborhood condition | 0.27 | 0.18 | 0.20 | 0.06 | 0.90 | 0.06–0.95 |
| Behaviors | ||||||
| Total behavior score | 23.23 | 17.00 | 21.00 | 3.00 | 72.00 | 0–103 |
| Aggressive behavior | 4.52 | 4.47 | 3.00 | 0.00 | 18.00 | 0–18 |
| Attention | 3.55 | 3.55 | 3.00 | 0.00 | 15.00 | 0–15 |
| Anxiety/depression | 3.00 | 2.52 | 2.00 | 0.00 | 10.00 | 0–13 |
| Rule breaking behavior | 1.80 | 1.91 | 1.00 | 0.00 | 9.00 | 0–17 |
| Somatic behavior | 1.82 | 2.54 | 1.00 | 0.00 | 12.00 | 0–12 |
| Cognitive functioning | Z-scores | |||||
| RVP mean A prime | 0.94 | 0.06 | 0.96 | 0.75 | 1.00 | −0.396 |
| IST sample error | 2.20 | 1.45 | 2.00 | 0.00 | 5.00 | No norms |
| RTI simple reaction time | 332.36 | 67.11 | 320.80 | 231.50 | 604.38 | 0.565 |
| SWM between search errors | 42.30 | 16.53 | 45.00 | 11.00 | 75.00 | −0.232 |
| SOC solved in minimum moves | 6.54 | 2.04 | 7.00 | 0.00 | 11.00 | −0.586 |
| IQ | 105.71 | 13.25 | 106.50 | 73.00 | 129.00 | Mean = 100 |
SWM, Spatial Working Memory; RVP, Rapid Visual Information Processing; SOC, Stockings of Cambridge; IST, Information Sampling Task; RTI, the RTI.