Sub study | Type of control | Number of controls/Intervention units | Timing of control period compared to intervention | |
---|---|---|---|---|
A. Associated with baseline promotion | ||||
Black Art Alone compared to $10 | Other churches* | 24/19 | Concurrent | |
Black Art + $10 compared to $10 | 24/62 | Concurrent | ||
B. Early post-baseline | ||||
Telephone follow-up | Other churches (randomized) | 13/27 | Concurrent | |
C. Mid post-baseline | ||||
Operation 30,000 | Self (152 churches) | N/A | 71 churches before and 81 after intervention period§ | |
Student recruiters | Other matched churches | 9/36 | Concurrent | |
Local Recruiters | Other matched churches | 12/10 | Concurrent | |
Tournament of Healing | Other matched churches | 22/38 | Concurrent | |
D. Late post-baseline | ||||
Lake Union $20 | Self (80 churches) | N/A | All controls are an average of periods before and after intervention | |
Enroll Another $2 bill† | None | 0/500† | N/A | |
Enroll Another $10† | None | 0/500† | N/A |