TABLE 4.
Number of studies by design type and program
| Design typea | TRE n = 22 | CURE n = 72 | URE n = 65 | Combination n = 9 | Other n = 9 | Total n = 177 |
|---|---|---|---|---|---|---|
| One data point | 0 (0%) | 14 (19%) | 20 (31%) | 1 (11%) | 1 (11%) | 36 (20%) |
| Pre and post | 8 (36%) | 24 (33%) | 15 (23%) | 4 (44%) | 3 (33%) | 54 (31%) |
| Trajectory | 8 (36%) | 6 (8%) | 6 (9%) | 0 (0%) | 2 (22%) | 22 (12%) |
| Quasi-experimental | 2 (9%) | 12 (17%) | 4 (6%) | 0 (0%) | 1 (11%) | 19 (11%) |
| Longitudinal | 0 (0%) | 1 (1%) | 4 (6%) | 1 (11%) | 1 (11%) | 7 (4%) |
| Other | 1 (5%) | 1 (1%) | 4 (6%) | 0 (0%) | 1 (11%) | 7 (4%) |
aOne data point included pre or post only; trajectory included retrospective and/or multiple data points over time; quasi-experimental included comparison of 2+ sample conditions; longitudinal included tracking individuals over time.