Table 3.
Descriptive statistics for observed variables.
| N | Mean or % | SD | Minimum | Maximum | |
|---|---|---|---|---|---|
| Race (% African American) | 1292 | 42% | – | – | – |
| Sex (% Male) | 1292 | 51% | – | – | – |
| State of Residence (% NC) | 1292 | 60% | – | – | – |
| Child Age at K (years) | 1072 | 5.99 | 0.31 | 5.40 | 7.35 |
| Cumulative Risk (6–36 months) | 1235 | −0.01 | 0.69 | −2.66 | 2.19 |
| Sensitive Parenting (6–36 months) | 1221 | 2.85 | 0.66 | 1.00 | 4.65 |
| Prosocial Behavior SCS (K) | 985 | 4.33 | 1.15 | 1.00 | 6.00 |
| Prosocial Behavior SDQ (K) | 982 | 1.54 | 0.47 | 0.00 | 2.00 |
| Peer Relationships (K) | 977 | 3.40 | 0.61 | 0.50 | 4.00 |
| Prosocial Behavior SCS (G1) | 931 | 4.27 | 1.18 | 1.00 | 6.00 |
| Prosocial Behavior SDQ (G1) | 929 | 1.52 | 0.49 | 0.00 | 2.00 |
| Peer Relationships (G1) | 929 | 3.34 | 0.66 | 0.00 | 4.00 |
| EF (36 months) | 973 | −0.54 | 0.54 | −1.98 | 1.18 |
| Operation Span (58 months) | 983 | 0.34 | 0.68 | −1.71 | 1.98 |
| Silly Sounds (58 months) | 995 | 0.21 | 0.78 | −1.98 | 1.41 |
| Animal Go/No Go (58 months) | 980 | 0.28 | 0.69 | −1.98 | 0.85 |
| Pick the Picture (58 months) | 1004 | 0.28 | 0.82 | −2.54 | 2.25 |
| H&F % correct (G1) | 991 | 0.80 | 0.18 | 0.15 | 1.00 |
| DCCS % correct (G1) | 827 | 0.85 | 0.14 | 0.25 | 1.00 |
| Backward Word Span (G1) | 1033 | 2.43 | 0.74 | 1.00 | 5.00 |
| WJ: Brief Reading (G2) | 1044 | 471.60 | 22.53 | 347.00 | 518.00 |
| WJ: Applied Problems (G2) | 1046 | 472.43 | 20.85 | 318.00 | 536.00 |
K, Kindergarten; G1, Grade 1; G2, Grade 2; SCS, Social Competence Scale; SDQ, Strengths & Difficulties Questionnaire; EF, Executive Function; H&F, Hearts & Flowers; DCCS, Dimensional Change Card Sort; WJ, Woodcock Johnson.