Table 1:
Comparison of REDI and HSIS samples
| Variables | REDI unwtd. Mean | HSIS base wt. Mean | REDI wtd. Mean | Std. Mean Difference unwtd. | Std. Mean Difference wtd. |
|---|---|---|---|---|---|
| Male | 0.46 | 0.51 | 0.44 | 0.1 | 0.13 |
| White/Other | 0.66 | 0.32 | 0.38 | −0.71 | −0.12 |
| Black | 0.16 | 0.18 | 0.21 | 0.06 | −0.06 |
| Hispanic | 0.19 | 0.5 | 0.42 | 0.63 | 0.16 |
| Family size | 4.59 | 4.93 | 4.69 | 0.19 | 0.14 |
| Mother married | 0.36 | 0.5 | 0.42 | 0.29 | 0.16 |
| Mother High School Ed. | 0.42 | 0.32 | 0.31 | −0.22 | 0.02 |
| Mother Postsecondary Ed. | 0.28 | 0.26 | 0.29 | −0.07 | −0.09 |
| Applied Standard Score Pre-test | 94.88 | 87.04 | 89.44 | −0.48 | −0.15 |
| Elision Pre-Test | 8 | 6.79 | 7.23 | −0.34 | −0.12 |
*
The column labeled “base wt.” use the Head Start Impact Study weight that ensures the mean is nationally representative. “unwtd.” refers to no weighting. The “std. mean Difference wtd.” column refers to weighting by the generalizability population weights defined in Section 2.