Effectiveness combinations | Number of studies per combination | Total number of studies |
---|---|---|
None | 20 | 20 |
Procedural | 39 | Â |
Substantive | 64 | |
Transactive | 7 | |
Normative | 0 | 110 |
Procedural-Substantive | 17 | Â |
Procedural-transactive | 11 | Â |
Procedural-normative | 0 | Â |
Substantive-transactive | 8 | Â |
Substantive-normative | 13 | Â |
Transactive-normative | 3 | 52 |
Procedural-substantive-transactive | 8 | Â |
Procedural-substantive-normative | 7 | Â |
Procedural-transactive-normative | 2 | Â |
Substantive-transactive-normative | 10 | 27 |
Procedural-substantive-transactive-normative | 7 | 7 |
Total number of studies | Â | 216 |