Table 1.
Treatment and control groups by district.
| Schools | ||||
|---|---|---|---|---|
|
| ||||
| District 1 | District 2 | District 3 | Total | |
| Control Group | 11 | 4 | 23 | 38 |
| Screen Only | 8 | 4 | 7 | 19 |
| Full Treatment | 8 | 4 | 7 | 19 |
|
| ||||
| Total | 27 | 12 | 37 | 76 |
| Students | ||||
|---|---|---|---|---|
|
| ||||
| District 1 | District 2 | District 3 | Total | |
| Control Group | 2,240 | 1,101 | 4,356 | 7,697 |
| Screen Only | 1,570 | 1,058 | 1,325 | 3,953 |
| Full Treatment | 1,158 | 1,245 | 1,369 | 3,772 |
|
| ||||
| Total sample | 4,968 | 3,404 | 7,050 | 15,422 |
|
| ||||
| Analytic sample | 4,968 | 3,050 | 6,554 | 14,572 |
|
| ||||
| Reading | 4,959 | 3,040 | 6,527 | 14,526 |
|
| ||||
| Mathematics | 4,965 | 3,045 | 6,539 | 14,549 |
Notes: The total sample includes all students in the tested school-grades. The analytic sample includes students that we could match across data sets and who had at least a valid post-test score for math or reading test. Some students are missing a post-test for only one subject so the sample sizes are slightly smaller for the math and reading test (analytic) samples.