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Field
Sample size (or number of clusters) by treatment arms
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Before
Our analysis unit is individual phone subscribers from the IPSOS database, with a target sample size of 12,000 for our study which is distributed as 4,500; 4,500; and 3,000 for T1; T2; and Placebo, respectively. To achieve this sample size, we plan to recruit 17,209 respondents, who will be nationally representative and distributed in the same ratio as our target sample. Specifically, we aim to recruit 6,454, 6,453, and 4,302 respondents for T1, T2, and Placebo, respectively.
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After
Our analysis unit is individual phone subscribers from the IPSOS database, with a target sample size of 12,000 for our study which is distributed as 4,500; 4,500; and 3,000 for T1; T2; and Placebo, respectively. To achieve this sample size, we plan to recruit 17,209 respondents, who will be nationally representative and distributed in the same ratio as our target sample. Specifically, we aim to recruit 6,454, 6,453, and 4,302 respondents for T1, T2, and Placebo, respectively.
If we did not reach the targeted sample, we will supplement our sample with additional booster sample of 8565 respondents. This will be distributed in the same ratio as above across our treatments arms.
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