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Field
Last Published
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Before
December 20, 2018 09:39 PM
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After
January 30, 2019 06:16 AM
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Field
Intervention (Public)
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Before
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After
Our interventions comprise the following broad components:
Monitoring: Biweekly health worker (hereafter, HW) visits to - a) collect data on diarrhea incidence over the last two weeks, b) test chlorine in the water, and c) offer free chlorine tablets (2-week’s supply) along with expert advice on use. These mimic standard public health campaigns around chlorine distribution.
Info-tool: HW helps the caregiver record diarrheal incidence (unique episodes across children) and total diarrhea days (the sum of all diarrhea days across episodes and children) and creates a bar graph to visually represent the total diarrhea days experienced by the children in the household in the last two weeks. At the end of each month (i.e. during the second biweekly visit in a month), the diarrhea days from that month are added up and colored into a month-level bar graph;
Social Norm: HW shares information on the monthly diarrhea days expected in households that do not use chlorine (to be estimated using data directly from the experiment); and
Habit formation with financial incentive: Caregivers are offered rewards (tokens redeemable for child or household goods) if water tested positive for chlorine; size of incentive to be calibrated to match the short-run take up of tablets in T1 (see experimental design below).
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Field
Power calculation: Minimum Detectable Effect Size for Main Outcomes
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Before
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After
1. Presence of residual chlorine in household drinking water (proportion; MDE: 11 pp)
2. Acceptance of offered chlorine tablets (proportion; MDE: 11 pp)
3. Number of days a child under five had diarrhea (days; MDE: 0.176)
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Field
Secondary Outcomes (End Points)
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After
Height-for-age Z-score; Weight-for-height Z-score
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Secondary Outcomes (Explanation)
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After
Z-scores will be constructed using the WHO child growth standards (WHO 2007).
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