Data will be collected by enumerators trained by IPA on the importance of confidentiality of the data, transparency, and accuracy of reported information. Backchecks will also be conducted to make sure that the data provided is consistent and correct. Protocols have been developed to address adverse events during data collection where enumerators go back to their supervisors and to the IPA office to address any complications. In addition, high frequency checks will be conducted whenever new data comes in to monitor the quality of data collection, and how values of different variables and missing values vary by enumerators and locations. Logic checks will be conducted to make sure that the value of variables fall within logical ranges. This allows for quick detection and correction of major outliers and high rates of attrition. Finally, all adverse events will be reported to the Massachusetts Institute of Technology's internal review board (the Committee on the Use of Humans as Experimental Subjects) as quickly as possible in accordance with the human subjects requirements.