Table 1 Pre/post-match balance results
Pre-match | Comparison (N = 176) | Treatment (N = 1197) | Standardized difference | Absolute SD | ||
|---|---|---|---|---|---|---|
Covariates | Mean | SD | Mean | SD | ||
Age | 6.55 | .57 | 6.52 | .53 | 5.55 | 5.55 |
Black | 41.00% | 49.00% | 57.00% | 50.00% | − 31.50 | 31.50 |
Asian | 5.00% | 21.00% | 3.00% | 17.00% | 9.03 | 9.03 |
Mixed | 9.00% | 29.00% | 10.00% | 30.00% | − 2.05 | 2.05 |
Black_white | 5.00% | 22.00% | 4.00% | 19.00% | 6.14 | 6.14 |
Hisp_white | 10.00% | 30.00% | 5.00% | 21.00% | 21.58 | 21.58 |
Male | 57.00% | 50.00% | 51.00% | 50.00% | 12.57 | 12.57 |
Speech | 2.00% | 15.00% | 3.00% | 18.00% | − 6.47 | 6.47 |
Learning | 1.00% | 11.00% | 1.00% | 11.00% | − .31 | .31 |
Free | 69.00% | 46.00% | 62.00% | 49.00% | 13.88 | 13.88 |
Reduced | 3.00% | 18.00% | 9.00% | 29.00% | − 24.21 | 24.21 |
Average | 12.12% | |||||
Post-Match | Comparison (N = 176) | Treatment (N = 880) | Standardized difference | Absolute SD | ||
|---|---|---|---|---|---|---|
Covariates | Mean | SD | Mean | SD | ||
Age | 6.55 | .57 | 6.54 | .53 | 2.67 | 2.67 |
Black | 41.00% | 49.00% | 46.00% | 50.00% | − 9.61 | 9.61 |
Asian | 5.00% | 21.00% | 4.00% | 19.00% | 4.58 | 4.58 |
Mixed | 9.00% | 29.00% | 11.00% | 31.00% | − 6.78 | 6.78 |
Black_white | 5.00% | 22.00% | 4.00% | 20.00% | 3.75 | 3.75 |
Hisp_white | 10.00% | 30.00% | 6.00% | 24.00% | 14.94 | 14.94 |
Male | 57.00% | 50.00% | 59.00% | 49.00% | − 2.76 | 2.76 |
Speech | 2.00% | 15.00% | 2.00% | 15.00% | .77 | .77 |
Learning | 1.00% | 11.00% | 1.00% | 9.00% | 2.25 | 2.25 |
Free | 69.00% | 46.00% | 66.00% | 48.00% | 6.77 | 6.77 |
Reduced | 3.00% | 18.00% | 3.00% | 18.00% | 1.27 | 1.27 |
Average | 5.10% | |||||