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Field
Trial Status
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Before
on_going
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After
completed
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Field
Last Published
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Before
August 04, 2017 03:26 PM
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After
October 31, 2017 10:33 AM
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Field
Primary Outcomes (End Points)
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Before
The primary outcome will be safe toilet uptake (separately among clients, and non-clients of the microfinance institution).
Secondary outcomes will be toilet quality, toilet usage and open defecation (separately among clients and non-clients of the microfinance institution).
Other outcomes we will study are effects on total household credit, sanitation credit, business investments and profits, education investments, perceptions of costs and benefits of toilets. All analyses will be conducted separately for clients and non-clients of the microfinance institution.
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After
The primary outcome will be safe toilet uptake (separately among clients, and non-clients of the microfinance institution).
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Field
Power calculation: Minimum Detectable Effect Size for Main Outcomes
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Before
We provide minimum detectable effect sizes for uptake of safe toilets among the whole endline sample, client households only, and non-client households only for a power of 0.8, a significance level of 0.05 and assuming two-sided tests. We also assume attrition of around 10% of the panel sample, evenly distributed among client and non-client households.
For the full sample, with 47 households per cluster on average at endline, and assuming a intra-class correlation of 0.15, this design will allow us to detect increases in safe toilet uptake of around 12.87 percentage points. For clients only, with an ICC of 0.15, the minimum detectable effect size will be 12.42 percentage points, while that for non-clients will be 14.2 percentage points.
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After
We provide minimum detectable effect sizes for uptake of safe toilets among the whole endline sample, client households only, and non-client households only for a power of 0.8, a significance level of 0.05 and assuming two-sided tests. We also assume attrition of around 10% of the panel sample, evenly distributed among client and non-client households.
For the full sample, with 47 households per cluster on average at endline, and assuming a intra-class correlation of 0.15, this design will allow us to detect increases in safe toilet uptake of around 12.87 percentage points. For clients only, with an ICC of 0.15, the minimum detectable effect size will be 12.42 percentage points, while that for non-clients will be 14.2 percentage points. Inclusion of controls such as the education of the household head greatly reduces the ICC, and allows us to detect smaller effect sizes.
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Field
Secondary Outcomes (End Points)
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Before
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After
Secondary outcomes will be toilet quality, toilet usage and open defecation (separately among clients and non-clients of the microfinance institution).
Other outcomes we will study are effects on total household credit, sanitation credit, business investments and profits, education investments, perceptions of costs and benefits of toilets, and uptake of a subsidy for toilet construction offered by the Government of India's Swaccha Bharat Mission policy. All analyses will be conducted separately for clients and non-clients of the microfinance institution.
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Field
Secondary Outcomes (Explanation)
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Before
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After
Toilet quality will be measured as an index combining household reports and surveyor observations of the toilet.
Toilet usage and open defecation at the household level will be measured as a weighted average of these behaviours across different age-gender groups within the household.
Total household credit will be calculated as the sum of the three largest loans of value > INR 500 taken by the household since the intervention began; and the three largest loans of value < INR 500 taken by households.
Sanitation credit will be measured as a binary variable, and by the value of credit for sanitation purposes
Business investments will be measured as a binary variable for any such investment since baseline
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