| Reach Score | Effect Size Score | Combined Intervention Impact Score |
|---|---|---|
1 = Low Reach – The study or studies excluded or probably excluded a high proportion of members of the defined target population (i.e., defined according to demographic and/or risk factor characteristics). The intervention tested was not representative of the target population. |
1 – Small | 1 |
| 3 – Medium | 2 | |
| 5 – Large | 3 | |
3 = Moderate Reach – The study or studies excluded or probably excluded a small but significant proportion of members of the defined target population. The intervention tested may be only partially representative of the target population. |
1 – Small | 2 |
| 3 – Medium | 3 | |
| 5 – Large | 4 | |
5 = Broad Reach – The study or studies included virtually all relevant members of the defined target population. The intervention tested was representative of the target population. |
1 – Small | 3 |
| 3 – Medium | 4 | |
| 5 – Large | 5 |
Updated: 4/12/2010