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Field
Sample size (or number of clusters) by treatment arms
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Before
Information treatment: Approximately 500 (since we employ a 2 x 2 cross randomization, with probability 1/4 in each cell).
Altruism treatment: approximately 1,333 in own landlord treatment (probability: 2/3), approximately 667 in random landlord treatment (probability: 1/3). Starting March 28, we randomize across three stakes with probability 1/3 each. Therefore, approximately 666 tenants will observe each value of the stakes.
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After
Information treatment: Approximately 500 (since we employ a 2 x 2 cross randomization, with probability 1/4 in each cell).
Altruism treatment: approximately 1,333 in own landlord treatment (probability: 2/3), approximately 667 in random landlord treatment (probability: 1/3). Starting March 28, we randomize across three stakes with probability 1/3 each. We have already received approximately 430 participants. We anticipate collecting another 1000-1500, so approximately about 333-500 will receive each treatment.
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