Table 1.
Distribution of evaluation designs (n = 105)
| Total N (%) |
Process and mechanism evaluations N (%) |
||
|---|---|---|---|
| Individual randomized trials | 23 (21.9) | 14 (13.3) | |
| Randomized trial adaptations | 47 (44.8) | 43 (40.9) | |
| Cluster randomized trials | 25 (23.8) | 23 (21.9) | |
| Pragmatic trials | 9 (8.6) | 8 (7.6) | |
| Cluster and pragmatic | 13 (12.4) | 12 (11.4) | |
| Alternative methods to RCT | 36 (34.3) | 27 (25.7) | |
| Quasi-experimental | 14 (13.3) | 12 (11.4) | |
| Cohort study | 6 (5.7) | 1 (0.1) | |
| Realist evaluation | 7 (6.7) | 7 (6.7) | |
| Case studies and other approachesa | 9 (8.6) | 7 (6.7) | |
a(Triangulated approach, goal-based evaluation, constructivist evaluation illuminative evaluation)