Cp Invite Trial Txt -
-------------------------------------------------------------------------------- 5. TIMELINE OF RESPONSES (cumulative %) -------------------------------------------------------------------------------- Day A B C D 1 5% 18% 3% 25% 2 12% 28% 7% 45% 3 18% 35% 12% 58% 4 24% 41% 18% 65% 5 29% 45% 24% 69% 6 32% 47% 28% 70% 7 34% 49% 30% 71%
-------------------------------------------------------------------------------- 4. STATISTICAL SIGNIFICANCE (Chi-square test) -------------------------------------------------------------------------------- - Arm D vs. Arm A: p < 0.001 (significant) - Arm D vs. Arm B: p = 0.002 (significant) - Arm D vs. Arm C: p < 0.001 (significant) - Arm B vs. Arm A: p = 0.021 (significant) - Arm B vs. Arm C: p = 0.004 (significant) - Arm A vs. Arm C: p = 0.612 (not significant)
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-------------------------------------------------------------------------------- 3. RESULTS -------------------------------------------------------------------------------- | Arm | Invites Sent | Responses (Day 1-7) | Response Rate | |---------------------|--------------|---------------------|---------------| | A (Email only) | 125 | 42 | 33.6% | | B (SMS only) | 125 | 61 | 48.8% | | C (In-app only) | 125 | 38 | 30.4% | | D (Multi-channel) | 125 | 89 | 71.2% |
-------------------------------------------------------------------------------- 1. OBJECTIVE -------------------------------------------------------------------------------- To evaluate the effectiveness of targeted invitation methods within a closed population (N=500) for a controlled trial. The primary endpoint is the response rate (acceptance to participate) within 7 days. Arm A: p < 0
Conclusion: Multi-channel invitation yields highest response rate. SMS alone outperforms email or in-app alone.
-------------------------------------------------------------------------------- END OF REPORT ================================================================================ Arm A: p = 0
Multi-channel arm reached 50% response by Day 2; single-channel arms required 4-5 days to approach 50%.